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Recent Publications 2005-2010

2009

G. D. Enright, K. A. Udachin, J.A. Ripmeester, “Complex packing motifs templated by a pseudo-spherical guest: The structure of beta-cyclodextrin / adamantane inclusion compounds,” CrystEngComm, in press.

Peter G. Gordon, Darren H. Brouwer, John A. Ripmeester, "Probing the Local Structure of Pure Ionic Liquid Salts with 35Cl, 79Br and 127I Solid- and Liquid-State NMR," ChemPhysChem (2010) online. http://dx.doi.org/10.1002/cphc.200900624

Seol, Jiwoong; Lee, Jon-Won; Kim, Do-Youn; Takeya, Satoshi; Ripmeester, John; Lee, Huen, “Molecular Cage Occupancy of Clathrate Hydrates at Infinite Dilution: Experimental Determination and Thermodynamic Significance,” J. Phys. Chem. B DOI: 10.1021/jp909982n (2009)

R. Gordienko, H. Ohno, V. K. Singh, Z. Jia, J. A. Ripmeester and V. K. Walker, “Towards a Green Hydrate Inhibitor: Imaging Antifreeze Proteins on Clathrates, Ind. Eng. Chem. Res., 2009, 48 (16), pp 7457–7465 DOI: 10.1021/ie900679m (2009)

Igor Moudrakovski, Stephen Lang, Serguei Patchkovskii and John Ripmeester, "High Field 33S Solid State NMR and First-Principles Calculations in Potassium Sulfates," Journal of Physical Chemistry A (2009) ASAP. http://dx.doi.org/10.1021/jp908206c

Peter J. Pallister, Igor L. Moudrakovski and John A. Ripmeester, "25Mg ultra-high field solid state NMR spectroscopy and first principles calculations of magnesium compounds," Physical Chemistry Chemical Physics 11 (2009) 11487-11500. http://dx.doi.org/10.1039/b916076k

Victor V. Terskikh, Stephen J. Lang, Peter G. Gordon, Gary D. Enright, and John A. Ripmeester, "13C CP MAS NMR of Halogenated (Cl, Br, I) Pharmaceuticals at Ultrahigh Magnetic Fields," Magnetic Resonance in Chemistry 47 (2009) 398-406. http://dx.doi.org/10.1002/mrc.2399

S. Takeya, K. A. Udachin, I. L. Moudrakovski, R. Susilo, and J. A. Ripmeester, “Powder X-ray Diffraction Direct Space Methods for Guest-Host Materials: Applications to Cage Occupancies and Guest Distributions in Clathrate Hydrates,” J. Am. Chem. Soc., DOI: 10.1021/ja905426e  

Adeyemo, A.; Kumar, R.; Linga, P.; Ripmeester, J.; Englezos, P., “Capture of CO2 from flue or fuel gas mixtures by clathrate crystallization in a silica gel column”, Int. J. Greenhouse Gas Control, accepted for publication (JGGC-D-09-00150), 2009

S. Alavi, K. Udachin, and J. A. Ripmeester, The Effect of Guest-Host Hydrogen Bonding on the Structure and Properties of Clathrate Hydrates, Chem. Eur. J., in press

Ultra-High field 33S Solid State NMR and first principles calculations in potassium sulfates, I. Moudrakovski,S. Lang, S. Patchkovskii and J. A. Ripmeester, J. Phys. Chem. A, (2009) DOI: 10.1021/jp908206c

Probing the local structure of pure ionic liquid salts with 35Cl, 79Br and 127I Solid- and Liquid-State NMR, P. G. Gordon, D. H. Brouwer, J. A. Ripmeester, ChemPhysChem, Early View, published on line Nov. 18, 2009 

Anomalous preservation of CH4 hydrate and its dependence on morphology of hexagonal ice, S. Takeya and J. A. Ripmeester, ChemPhysChem, Early View – published on line Oct. 23 2009.

Gas hydrate formation in a variable volume bed of silica sand particles, P. Linga, C. Haligva, S. C. Nam, J. Ripmeester, P. Englezos, Energy and Fuels, September 28, 2009  DOI: 10.1021/ef900542m

Recovery of methane from hydrate formed in a variable volume bed of silica sand particles, P. Linga, C. Haligva, S. C. Nam, J. Ripmeester, P. Englezos, Energy & Fuels, Web pub. Date September 24, 2009 (Article) DOI: 10.1021/ef900543v

Raman spectroscopy and cage occupancy of hydrogen clathrate hydrate from first principle calculations, J. Wang, H. Lu and J. A. Ripmeester, J. Am. Chem. Soc. (Comm.), 131 14132–14133 (2009)

Migration of hydrogen radicals through clathrate hydrate cages, S. Alavi and J. A. Ripmeester, Chem. Phys. Lett. 479 234–237(2009)

Multifrequency EPR study of the mobility of nitroxides in solid-state calixarene nanocapsules, E. G.Bagryanskaya, D. N. Polovyanenko, M. V. Fedin, L. Kulik, A. Schnegg, A. Savitsky, K. Möbius, G. Ananchenko, J.A. Ripmester, Phys. Chem. Chem. Phys. 11, 6700-7, (2009)

Tuning the Composition of Guest Molecules in Clathrate Hydrates: NMR Identification and Its Significance to Gas Storage, Y. Seo, J-W. Lee, R. Kumar, I. L. Moudrakovski, H. Lee and J. A. Ripmeester, Chem. An Asian J., 4, 1266-74 (2009)

A two-stage clathrate hydrate/membrane process for pre-combustion capture of carbon dioxide and hydrogen, R. Kumar, P. Linga, J. A. Ripmeester and P. Englezos, J. Environm. Eng., 135, 411-17(2009)

Structure and composition of CO2/H2 and CO2/H2/C3H8 hydrate in relation to simultaneous CO2 capture and H2 production, R. Kumar, I. L. Moudrakovski, J.A. Ripmeester and P. Englezos, AIChE Journal, 55, 1584-1594 (2009)

Inclusion complexes of coumarin in cucurbiturils, R. Wang, D. Bardelang, M. Waite, K. A. Udachin, D. M. Leek, K. Yu, C. I. Ratcliffe and J. A. Ripmeester, Org. Biomol. Chem., 7, 2435 – 2439 (2009)

Synthesis and characterization of a new structure of gas hydrateL. Yang, C. A. Tulk, D. D. Klug, I. L. Moudrakovski, C. I. Ratcliffe,  J. A. Ripmeester, B. C. Chakoumakos, L. Ehm, C. D. Martin, J. B. Parise, Proc. Nat. Acad. Sci. USA. 106, 6060-4 (2009)

Application of the ATR-IR spectroscopic technique to the characterization of hydrates of carbon dioxide, R. Kumar, S. Lang, P. Englezos, J. A. Ripmeester, J. Phys. Chem. A 113, 6308-13 (2009)

Photoluminescent Quantum Dots in Cucurbituril Capsules, M. Li, B. Zaman, D.  Bardelang, X. Wu, D. Wang, J. Margeson, D. Leek, J. A. Ripmeester, C. I. Ratcliffe, Q. Lin, B. Yang, K. Yu, Chem. Comm., 6807-6809  (2009)

Probing Cucurbituril Assemblies in Water with TEMPO like Nitroxides. Trinitroxide Supraradical with Strong Spin-Spin Interactions, D. Bardelang, K. Banaszak, H. Karoui, A. Rockenbauer, M. Waite, K. A. Udachin, J. A. Ripmeester, C. I. Ratcliffe, O. Ouari, P. Tordo, J. Am. Chem. Soc. (Comm), 131, 5402 – 4 (2009)

Linking microscopic guest properties to macroscopic observables in clathrate hydrates: Guest host hydrogen bonding, Saman Alavi, R. Susilo and J. A. Ripmeester, J. Chem. Phys. 130, 174501 (2009)

13C CP MAS NMR of Halogenated (Cl, Br, I) Pharmaceuticals at Ultrahigh Magnetic Fields, V. V. Terskikh, P. G. Gordon, S. J. Lang, G. D. Enright, J. A. Ripmeester, Magn. Reson. Chem., 5 824 (2009)

Homogeneously-Alloyed CdTeSe Single-Sized Nanocrystals with Bandgap Photoluminescence, K. Yu, R. Wang, O. Calvignanello, C. I. Ratcliffe,  X. Wu, D. Leek, M. B. Zaman, D. Kingston, J. A. Ripmeester, J. Phys. Chem. C. 113, 3402-8 (2009)

2008

S. Alavi, J.A. Ripmeester, “Simulations of p-tert-Butylcalix[4]arene with Multiple Occupancies of Small Guest Molecules”, Chemistry - A European Journal14, 2008, 1965-1971.

S. Alavi, D. D. Klug and J. A. Ripmeester, “Simulations of sII H2 and D2 clathrates: Potentials Incorporating Quantum Corrections”, J. Chem. Phys. 128 0645061 -8 (2008)

G.S. Ananchenko, K.A. Udachin, A.W. Coleman, D.N. Polovyanenko, E.G. Bagryanskaya, J.A. Ripmeester, "Crystalline inclusion complex of a calixarene with a nitroxide," Chem.Commun., 223-225. (2008).

G.S. Ananchenko, I.L. Moudrakovski, A.W. Coleman, J.A. Ripmeester, “A channel-free soft-walled capsular calixarene solid for gas adsorption”, Angew. Chem. Int. Ed. 47, 2008, 5616-5618.

R. Anedda, D.V. Soldatov, I.L. Moudrakovski, M. Casu, J.A. Ripmeester, “A new approach to characterizing sorption in materials with flexible micropores”, Chem. Mater. 20, 2008, 2908-2920.

D. Bardelang, Md.B.Zaman, I.L. Moudrakovski, S. Pawsey, J.C. Margeson, D. Wang, X. Wu, J.A. Ripmeester, C.I. Ratcliffe, K. Yu,  “Interfacing Supramolecular Gels and Quantum Dots with Ultrasound: Smart Photoluminescent Dipeptide Gels.”,  Advanced Materials, 20, 1-4 (2008)

D. Bardelang, K.A. Udachin, R. Anedda, I. Moudrakovski, D.M. Leek, J.A. Ripmeester, C.I. Ratcliffe, “Single-crystal to single-crystal phase transition of cucurbit[5]uril hydrochloride hydrates: large water-filled channels transforming to layers of unusual stability.”, Chem.Comm., 4927-4929 (2008). 

D. Bardelang, F. Camerel, J.C. Margeson, D.M. Leek, M. Schmutz, Md.B. Zaman, K. Yu, D.V. Soldatov, R. Ziessel, C.I. Ratcliffe, J.A. Ripmeester, “Unusual Sculpting of Dipeptide Particles by Ultrasound Induces Gelation”, J.Am.Chem.Soc. (Commun.), 130, 3313-3315 (2008).

A. Barthelemy, C. Duchamp, J.-P. Uttaro, C. Rousseau, B. Fenet, G. Ananchenko, S. Lang, A. W. Coleman, J. Ripmeester, C.Guillard, L. Elsellami, R. Lamartine, C. Felix, F. Vocanson, "Elaboration of Hybrid Organic-Inorganic Materials for Ammonium Ions Retention: Electron Microscopy Bipolarized Observations and 129Xe solid-state NMR," Materials Science Eng. C , 28, 977-984 (2008)

D.H. Brouwer, I.L. Moudrakovski, K.A. Udachin, G.D. Enright and J.A. Ripmeester, “Guest-loading and multiple phases in single crystals of the van der Waals host p-tert-butylcalix[4]arene”, Crystal Growth & Design, 8, 1878-1885 (2008).

D.H. Brouwer, S. Alavi and J.A. Ripmeester, "NMR Crystallography of p-tert-Butylcalix[4]arene Host-Guest Complexes Using 1H Complexation-Induced Chemical Shifts," Physical Chemistry Chemical Physics 10 3857-3860 (2008).

T. J. Burchell, D. V. Soldatov, and J. A. Ripmeester, “Crystal structure of the co-crystal of ala-val-ala and H2O: A layered inclusion compound”, J.Struct. Chem, 49,188-191 (2008)

T.J. Burchell, G.D. Enright and J.A. Ripmeester, “Guest capture, storage and removal in the TATM host framework: A single crystal study”, New J. Chem. 32, 864-871 (2008).

B.D. Chandler, G.D. Enright, J.A. Ripmeester, S.Pawsey, K.A. Udachin, D.T. Cramb and G.K.H. Shimizu, "Mechanical gas capture and release in a network solid via multiple single-crystalline transformations," Nature Materials, 7, 229-235 (2008).

A. W. Coleman, S. Jebors, P. Shahgaldian, G. S. Ananchenko and J. A. Ripmeester,  “para-Acylcalix[n]arenes: from molecular to macroscopic assemblies”, Chem. Commun., 2291- 2303 (2008)

P. Gordon, D. Brouwer, J. Ripmeester, "35Cl Solid-State NMR of Halide Ionic Liquids at Ultrahigh Fields," Journal of Physical Chemistry A 112 12527–12529 (2008).

Z. J. Jakubek, J. deVries, S. Lin, J. Ripmeester and K. Yu, “Exciton Recombination and Upconverted Photoluminescence in Colloidal CdSe Quantum Dots”,  J. Phys. Chem. C 112, 8153 (2008)

R. Kumar, P. Linga, I. Moudrakovski, J.A. Ripmeester, P. Englezos, “Structure and kinetics of gas hydrates from methane/ethane/propane mixtures relevant to the design of natural gas hydrate storage and transport facilities”, AICHE-Journal. 54, 2008, 2132-2144.

C. Liu, H. Lu, Y. Ye, J.A. Ripmeester, X, Zhang, “Raman Spectroscopic observations on the structural characteristics and dissociation behaviour of methane hydrate synthesized in silica sands with various sizes”, Energy and Fuels, 22, 3986-3988, 2008.

J. Ouyang, C.I. Ratcliffe, D. Kingston, B. Wilkinson, J. Kuijper, X. Wu, J.A. Ripmeester, K. Yu, "Gradiently Alloyed ZnxCd1-xS Colloidal Photoluminescent Quantum Dots Synthesized via a Non-Injection One-Pot Approach," J.Phys.Chem C, 112, 4908-4919 (2008).

J. Ouyang, B. Zaman, F. Yan, D. Johnston, G. Li, X. Wu, D. Leek, C.I. Ratcliffe, J.A. Ripmeester, K. Yu, “Multiple Families of Magic-Sized CdSe Nanocrystals with Strong Bandgap Photoluminescence via Non-Injection One-Pot Synthesis”,  J.Phys.Chem. C, 112, 13805-13811 (2008).

Y. Park, M. Cha, W. Shin, H. Lee, and J. A. Ripmeester, “Spectroscopic Observation of Critical Guest Concentration Appearing in tert-Butyl Alcohol Clathrate Hydrate”, J. Phys. Chem B 112, 8443-6 (2008)

D. N. Polovyanenko, E. G. Bagryanskaya, A. Schnegg, K. Möbius, A. W. Coleman, G. S. Ananchenko, K. A. Udachin, and J. A. Ripmeester, “Inclusion of 4-methoxy-2,2,6,6-tetramethylpiperidine-N-oxyl in a calixarene nanocapsule in the solid state”, Phys. Chem. Chem. Phys., 10, 5299 -7 (2008)

C. Reinhold, P. Anderson, P. Edwards, V. Terskikh, C. Ratcliffe, J. Ripmeester,  “133Cs NMR and ESR Studies of Caesium Loaded LiX and LiA Zeolites”,J.Phys.Chem.C, 112, 17796-17803 (2008).

R. Susilo, S. Alavi, J. A. Ripmeester, and P. Englezos, “Molecular dynamics study of structure H clathrate hydrates of methane and large guest molecules”, J. Chem. Phys., 128, 194505 (2008)

R. Susilo, S. Alavi, S.Lang, J. A. Ripmeester and P. Englezos, “Interactions between Structure H Hydrate Formers and Water Molecules”, J. Phys. Chem.C, 112, 9106 – 13 (2008)

S. Takeya, J. A. Ripmeester, “Dissociation Behavior of Clathrate Hydrates to Ice and Dependence on Guest Molecules”, Angew. Chem. – Int. Ed, 47, 1276-79 (2008)

K.A.Udachin, C.I.Ratcliffe, G.D.Enright, J.A.Ripmeester, “Transformation of the Hexagonal-Structure Clathrate Hydrate of Cyclooctane to a Low-Symmetry Form below 167K.”, Angew.Chem.Int.Ed., 47, 9704-9707 (2008).

K.A. Udachin, I.L. Moudrakovski, G.D. Enright, C.I. Ratcliffe and J.A. Ripmeester, “Loading-dependent structures of CO2 in the flexible molecular van der Waals host p-tert-butylcalix[4]arene with 1:1 and 2:1 guest host-stoichiometries”, Phys. Chem. Chem. Phys. 10, 4636-4643 (2008).

H. Zeng, H. Lu, E. Huva, V. K. Walker, and J. A. Ripmeester, “Differences in nucleator adsorption may explain distinct inhibition activities of two gas hydrate kinetic inhibitors”, Chem. Eng. Sci., 63, 4026-4029(2008)

Refereed Report

Energy from gas Hydrates: Assessing Opportunities & Challenges for Canada, J. Grace, T. Collett, F. Colwell, P. Englezos, E. Jones, R. Mansell, J. P. Meekison, R. Ommer, M. Pooladhi-Darvish, M. Riedel, J. Ripmeester, C. Shipp, E. Willoughby,  The Council of Canadian Academies, Ottawa, 2008, 206 pages

Proceedings of the 6th International Conference on Gas Hydrates (ICGH), July  6 – 10, 2008, Vancouver, BC

A. Charbonneau, V. Terskikh, "SpectroGrid: Providing Simple Secure Remote Access to Scientific Instruments," 22nd International Symposium on High Performance Computing Systems and Applications, 9-11 June 2008, IEEE HPCS (2008) 76-82.

T. Kawasaki, H. Lu, T. Fujii, M. Nakamizu, J.A. Ripmeester, “Experimental studies of the saturation level of methane hydrate in the eastern Nankai Trough sediments”. Proceeding of 6th International Conference on Gas Hydrates, Vancouver, 06-10 July 2008.

J.-W. Lee, H. Lu, I.L. Moudrakovski, C.I. Ratcliffe, J.A. Ripmeester, “New Findings On Guest Enclathration In Structure-H Hydrates By Means Of Thermodynamic And Spectroscopic Analysis”, Proceeding of 6th International Conference on Gas Hydrates, Vancouver, 06-10 July 2008.

C. Liu, H. Lu, Y. Ye, J.A. Ripmeester, “Raman spectroscopic observations on the structural characteristics and dissociation behavior of methane hydrate synthesized in silica sands with various sizes”. Proceeding of 6th International Conference on Gas Hydrates, Vancouver, 06-10 July 2008.

H. Lu, T. Kawasaki, H. Zeng, T. Fujii, M.Nakamizu, J.A. Ripmeester, “Sediment control on the saturation level of gas hydrate in natural environment”. Proceeding of 6th International Conference on Gas Hydrates, Vancouver, 06-10 July 2008.

H.Lu, J.A. Ripmeester, “A protocol for the analyses of natural gas hydrates”. 6th International Conference on Gas Hydrates, Vancouver, 06-10 July 2008.

M.Luzi, J.M.Schicks, R.Naumann, J.Erzinger, K.A.Udachin, I.L.Moudrakovski, J.A. Ripmeester, R. Ludwig, Investigations On The Influence Of Guest Molecule Characteristics And The Presence Of Multicomponent Gas Mixtures On Gas Hydrate Properties”, Proceedings of the 6th International Conference on Gas Hydrates (ICGH 2008), Vancouver, British Columbia, July 6-10, 2008.

I.L.Moudrakovski, H.Lu, J.A.Ripmeester, R.Kumar, R.Susilo, M.Luzi, "Experimental Solid State Nmr Of Gas Hydrates: Problems And Solutions”, Proceedings of the 6th International Conference on Gas Hydrates (ICGH 2008), Vancouver, British Columbia, July 6-10, 2008

T.Okuchi, I.L.Moudrakovski, J.A.Ripmeester, “In Situ Nmr Studies Of Hydrogen Storage Kinetics And Molecular Diffusion In Clathrate Hydrate At Elevated Hydrogen Pressures”, Proceedings of the 6th International Conference on Gas Hydrates (ICGH 2008), Vancouver, British Columbia, July 6-10, 2008:

J.M.Schicks, H. Lu, M.Ziemann, J.A. Ripmeester, “Characteristics of gas hydrates formed from H2S and CH4 gas under various conditions”. Proceeding of 6th International Conference on Gas Hydrates, Vancouver, 06-10 July 2008.

S. Takeya, K. A. Udachin, and J.A. Ripmeester "Ab initio structure determination of gas hydrates and refinement of guest molecule positions by powder X-Ray diffraction" Proceeding of 6th International Conference on Gas Hydrates, Vancouver, Canada, 2008.

K.A Udachin, C.I. Ratcliffe, J.A. Ripmeester "A low symmetry form of structure H clathrate hydrate" Proceeding of 6th International Conference on Gas Hydrates, Vancouver, Canada, 2008

2007

G. Ananchenko, K. Udachin, A. Coleman, D. Polovyanenko, E. Bagryanskaya and J. Ripmeester, "Crystalline inclusion complex of a calixarene with a nitroxide," Chem. Comm. 223-5 (2007).

G.S. Ananchenko, K.A. Udachin, M. Pojarova, S. Jebors, A.W. Coleman, J.A. Ripmeester, "A molecular turnstile in para-octanoyl calix[4]arene nanocapsules," Chem. Comm. 707 (2007).

D. Bardelang, K.A. Udachin, D.M. Leek, J.A. Ripmeester, "Highly symmetric columnar channels in metal-free cucurbit[n]uril hydrate crystals (n = 6, 8),"Cryst.Eng.Comm., 9, 973-975 (2007).

Darren H. Brouwer, John A. Ripmeester, "Symmetry-based recoupling of proton chemical shift anisotropies in ultrahigh-field solid-state NMR," Journal of Magnetic Resonance 185, 173-178 (2007).

Darren H. Brouwer, Saman Alavi, and John A. Ripmeester, "A double quantum 129Xe NMR experiment for probing xenon in multiply-occupied cavities of solid-state inclusion compounds," Physical Chemistry Chemical Physics 9, 1093-1098 (2007).

T.J. Burchell, D.V. Soldatov, G.D. Enright and J.A. Ripmeester, "The ability of lower peptides to form co-crystals: Inclusion compounds of Leu-Leu-Leu tripeptide with pyridine and picolines," CrystEngComm 9, 922-929 (2007).

G.D. Enright, V.V. Terskikh, D.H. Brouwer and J.A. Ripmeester, "The structure of two anhydrous polymorphs of caffeine from single-crystal diffraction and ultrahigh-field solid-state 13C NMR spectroscopy," CrystalGrowth & Design 7, 1406-1410 (2007).

S. Jebors, G. S. Ananchenko, A. W. Coleman, J. A. Ripmeester, "Synthesis and Self-assembly Properties of para-acyl-Calix[8]arenas," Tetrahedron Lett., 48, 5503 – 5506. (2007).

H. Lu, Y. Seo, J. Lee, I. L Moudrakovski, J. A. Ripmeester, N. R.Chapman, R.B. Coffin, G. Gardner, J. Pohlman, "Complex gas hydrate from the Cascadia Margin," Nature, 445, 303 (2007).

H. Lu, Y. Tsuji, and J.A. Ripmeester, "Stabilization of methane hydrate by pressurization with He or N2 gas," Journal of Physical Chemistry B, 111, 14163-14168 (2007).

I.L. Moudrakovski, J.A. Ripmeester, "K-39 NMR of solid potassium salts at 21 T: Effect of quadrupolar and chemical shift tensors," J. Phys. Chem. B. 111, 491-495. (2007).

T. Okuchi, I.L. Moudrakovski, J.A. Ripmeester, "Efficient storage of hydrogen fuel into leaky cages of clathrate hydrate," Appl. Phys. Lett. 91, 76-78. (2007).

J. Ouyang, J. A. Ripmeester, X. Wu, D. Kingston, K. Yu, A.G. Joly,  "Upconversion Luminescence of Colloidal CdS and ZnCdS Semiconductor Quantum Dots," J. Chem. C., 111 16261-6 (2007).

S. Pawsey, I.L. Moudrakovski, J. Ripmeester, L.Q. Wang, G.J. Exarhos, J.L.G. Rowsell, O.M. Yaghi, "Hyperpolarized Xe-129 nuclear magnetic resonance studies of isoreticular metal-organic frameworks,"   J. Phys. Chem. C. 111, 6060-6067 (2007).

M. Pojarova, G. S. Ananchenko, K. A. Udachin, F. Perret, A. W. Coleman, J. A. Ripmeester, "Alfa-C=O provides access to the cavity in acyl calix[4]arenes: A comparative study of crystal structures," New J. Chem., 31, 871 – 878. (2007).

R. Susilo, J. A. Ripmeester, P. Englezos, "Methane conversion rate into structure H hydrate crystals from ice," AIChE Journal. 53, 2451-60 (2007).

K.A. Udachin, H. Lu, G.D. Enright, C.I. Ratcliffe, J.A Ripmeester, N. R. Chapman, M. Riedel, G. Spence, "Single-crystals of naturally occurring gas hydrates: the structures of methane and methane-mixed hydrocarbon hydrates." Angewandte Chemie Int. Ed. Engl., 46, 8220-8222 (2007).

K.A. Udachin, C.I. Ratcliffe, J.A. Ripmeester, "Structure, Dynamics and Ordering in Structure I Ether Clathrate Hydrates from Single-Crystal X-ray Diffraction and 2H NMR Spectroscopy," J.Phys.Chem. B, 111, 11366-11372 (2007).

Conference Proceedings

Adsorption of antifreeze protein and commercial low-dosage hydrate inhibitors on hydrophilic and hydrophobic surfaces, H. Zeng, V. K. Walker and J. A. Ripmeester, Proceedings of the 11th Conference on the Physics and Chemistry of Ice, Ed. W. F. Kuhs, RSC, p. 660 2007.

Structure H Hydrate kinetics studied by NMR Spectroscopy, R. Susilo, I.L. Moudrakovski, J. A. Ripmeester, P. Englezos, Proceedings of the 11th Conference on the Physics and Chemistry of Ice, Ed. W. F. Kuhs, RSC, p. 570 2007

Selection for "Ice Resistant" Antifreeze Proteins and Ice or Hydrate Inhibition, V. K. Walker, S. L. Wilson, Z. Wu, E. Huva, G. R. Palmer, G. Voordouw, H. Zeng, J. A. Ripmeester, Proceedings of the 11th Conference on the Physics and Chemistry of Ice, Ed. W. F. Kuhs, RSC, p. 87, 2007.

Improving our understanding of Gas hydrate formation processes: the importance of multi-technique approaches. J. A. Ripmeester, Proceedings of the 11th Conference on the Physics and Chemistry of Ice, Ed. W. F. Kuhs, RSC, p 60, 2007.

2006

S. Alavi, N. A. Afgah, J. A. Ripmeester and D. L. Thompson, “Molecular dynamics simulations of p-tert-butylcalix[4]arene with small guest molecules,” Chem. Eur. J. 12 5231 (2006).

S. Alavi, J. A. Ripmeester, and D. D. Klug, “Molecular Dynamics Simulations of Binary Structure II Hydrogen and Tetrahydrofuran Clathrates,” J. Chem. Phys. 124, 014704 (2006).

S. Alavi, J. A. Ripmeester, and D. D. Klug, “Molecular Dynamics Simulations of Binary Structure H Hydrogen and Methyl-tert-butylether Clathrate Hydrates,” J. Chem. Phys. 124 204707 (2006).

S. Alavi, J.A. Ripmeester, and D.D. Klug, “Stability of rare gas structure H clathrate hydrates,” J. Chem. Phys.125, 104501 (2006).

G.S Ananchenko, M. Pojarova, K. A. Udachin, D. M. Leek,A W. Coleman and J. A. Ripmeester, “Supramolecular stabilization of hydroxylamine TEMPOH by complexation with an amphiphilic calixarene,” Chem. Comm. 386 – 388 (2006).

G. S. Ananchenko, K. A. Udachin, A. Dubes, J. A. Ripmeester, T. Perrier, A. W. Coleman, “Guest Exchange in Single Crystals of van der Waals Nanocapsules,” Angew. Chem. Int’l Ed’n, 45 1585-1588 (2006).

G. S. Ananchenko, K. A. Udachin, M. Pojarova, A. Dubes, J. A. Ripmeester, S. Jebors, and A. W. Coleman, “Van der Waals Nanocapsular Complexes of Amphiphilic Calixarenes,” Cryst. Growth Des. 6, 2141 – 2148 (2006).

G. S. Ananchenko, K. A. Udachin, J. A. Ripmeester, T. Perrier, A. W. Coleman, “Phototransformation of Stilbene in van der Waals Nanocapsules,” Chem. A European J. 12, 2441 (2006).

P. O. Brown, G. D. Enright, J. A. Ripmeester, “Nanocrystalline Ag from Supramolecular Stabilization of Metals in 4-t-butylcalix[4]arene Lattices,” Chemistry: An Asian Journal, 1, 529 (2006).

P. O. Brown, G. D. Enright, J. A. Ripmeester, “Pseudopolymorphism of aliphatic amine:4-t-Butylcalix[4]arene inclusion compounds:  Supramolecular Stabilization as a Route to Polar Clusters and Layers,” Chem. Eur. J.,  12,  8240-8252 (2006).

P. O. Brown, G. D. Enright and J. A. Ripmeester, “Pseudopolymorphism of Ethylpyrogall[6]arene:Investigating the Role of Solvent in Guiding Self-Assembly of 3D Networks,” Crystal Growth and Design, 6, 719 – 725 (2006).

P. O. Brown, G. D. Enright and J. A. Ripmeester, “Resorcinarene Configuration and Inclusion Behaviour:  Isolation of a Guest Free Form of pyrogall[4]arene,” CrystEng Comm. 381-383 (2006). 

J-W. Lee, H. Lu, I. L. Moudrakovski, C. I Ratcliffe, J. A. Ripmeester, “n-Pentane and n-Hexane as Coguests in sH-Hydrate in Mixtures of 2,2-dimethylbutane and Methane,”  Angew. Chem, Int’l Ed’n, 45 2456-59 (2006).

M. Pojarova, G. S. Ananchenko, K. A. Udachin, M. Daroszewska, F. Perret, A. W. Coleman, and J. A. Ripmeester, “Solid Lipid Nanoparticles of p-hexanoyl calix[4]arene as a controlling agent in the photochemistry of a sunscreen blocker,” Chem. Mater., (Comm.) 18 5817-5819 (2006).

C. I. Ratcliffe, K. Yu, J. A. Ripmeester, M. B. Zaman, C. Badarau, and S. Singh, “Solid State NMR Studies of Photoluminescent Cadmium Chalcogenide Nanoparticles,” Phys. Chem. Chem. Phys. 8 3510 – 19 (2006).

J.A. Ripmeester, G.D.Enright, C.I. Ratcliffe, K.A.Udachin and I.L.Moudrakovski, “What we have learned from the study of solid p-tert-butylcalix[4]arene compounds,” Chem. Comm., 4986-4996 (2006). 

J.A. Ripmeester, C.I. Ratcliffe, “Solid State NMR in Host-Guest Chemistry” in Modern Magnetic Resonance, Ed. G.Webb, Vol.1, Applications in Chemistry, Eds. T.Asakura, H.Saito, I.Ando, Springer, Dordrecht, 139-144 (2006).

A. N. Sokolov, T. Fris¡c¡ic, S. P. Blais, J. A. Ripmeester, L. R. MacGillivray, “Persistent One-Dimensional Face-to-Face ð-Stacks within Organic Cocrystals,” Cryst. Growth and Design, (Comm) 6 2427-2428 (2006).

Dmitriy V. Soldatov, Igor L. Moudrakovski, Eugeny V. Grachev, John A. Ripmeester, “Micropores in Crystalline Dipeptides as Seen from the Crystal Structure, He Pycnometry and 129Xe NMR Spectroscopy,” J. Am. Chem. Soc.128 6737 -44 (2006).

R. Susilo, I. L. Moudrakovski J. A. Ripmeester and P. Englezos, “Hydrate kinetics study in the presence of non-aqueous liquid by NMR spectroscopy and imaging,” J. Phys. Chem., B  110 25803-25809 (2006).

B.H. Torrie, O.S.Binbrek, I.P.Swainson, K.A.Udachin, C.I.Ratcliffe, J.A.Ripmeester, “Diffraction Studies of Gas Hydrates with Emphasis on CO2 Hydrate” Physics in Canada,V.62, No.5, pp273-7 (2006).

H. Zeng, I. L. Moudrakovski, J. A. Ripmeester and V. K. Walker, “Effect of Antifreeze Proteins on Nucleation, Growth and Memory in Hydrocarbon Hydrate Formation,” AIChE J. 52, 3304 (2006). 

H. Zeng, L. Wilson, V. K. Walker, J. A. Ripmeester,  “The Effect of Antifreeze Proteins on the Nucleation, Growth and the Memory Effect During Tetrahydrofuran Clathrate Hydrate Formation,” J. Am. Chem. Soc. 128, 2844 (2006).

2005

Extending the chemistry of p-t-butylcalix[4]arene with H-bonding and secondary coordination, P. O. Brown, K. A. Udachin, G. D. Enright and J. A. Ripmeester, Chem. Commun. 4402-4 (2005)

Structural Transition and Tuning of the tert-Butylamine Hydrate, D-Y. Kim, J. Lee, Y-T. Seo, J. A. Ripmeester and H. Lee, Angew. Chem. (Int’l Ed’n), 44, 7749 (2005)

NMR shielding constants for hydrogen guest molecules in structure II clathrates S. Alavi, J.A. Ripmeester, and D.D. Klug, J. Chem. Phys., 123,  51107 (2005)

Molecular dynamics study of structure II hydrogen clathrates,
S. Alavi, J.A. Ripmeester, and D.D. Klug, J. Chem. Phys. 123 24507 (2005)

Colloidal CdSe Nanocrystals from Tri-n-Octylphosphine with Various Cd Sources: Control of Slow Growth for High-Quality and Large-Scale Production, K. Yu, Md. B. Zaman, J. A. Ripmeester, J. Cryst. Growth. 283,  115 – 123 (2005)

The Effect of Dispersion Media on Photoluminescence of Colloidal CdSe Nanocrystals Synthesized From TOP, K. Yui, B. Zaman, S. Singh, D. Wang and J. A. Ripmeester, Chem. Mater. 17, 2552-61 (2005)

Xenon NMR as a probe for microporous and mesoporous solids, polymers, liquid crystals, solutions, proteins, imaging,  K. Bartik, A. Constantinesco, J. Fraissard, G. E. Pavlovskaya, J. Jokisaari,  E. Locci, T.J. Lowery, M. Luhmer, T. Meersmann, I.L. Moudrakovski , K. L. Pierce, A. Pines, J. A. Ripmeester, V-V Telkki, W.S. Veeman,  L’Actualite Chimique 287, 16 – 34 (2005)

Guest-induced Chain Folding in Amphiphilic Calixarene Structures, A. Dubes, K. A. Udachin, P. Shahgaldian, A. Lazar, A. W. Coleman and J.A. Ripmeester, New J. Chem. 29, 1141 - 1146 (2005)

Tuning clathrate hydrates for hydrogen storage, H. Lee, J. Lee, D. Y. Kim, J. Park, Y.-T. Seo, H. Zeng, I. L. Moudrakovski, C. I. Ratcliffe, J. A. Ripmeester, Nature 434, 743 (2005)

Nuclear Magnetic Resonance Studies of Resorcinol-Formaldehyde Aerogels, I. L. Moudrakovski, C.I. Ratcliffe, J.A. Ripmeester, L-Q. Wang, G. J. Exarhos, T. Baumann, J. H. Satcher, J. Phys. Chem. B 109, 11215 (2005)

Probing the Alkyl Ligands on Silylated Mesoporous MCM-41 Using Hyperpolarized 129Xe NMR Spectroscopy, S-J. Huang, C-H. Huang, W-H. Chen, X. Sun, X. Zeng, H.-K. Lee, J. A.Ripmeester,C-Y. Mou, and S.-B. Liu, J. Phys. Chem. B 109, 681-2 (2005)

Occurrences and structural characterization of gas hydrates associated with a cold vent field, offshore Vancouver Island, H. Lu,  I. Moudrakovski,  M. Riedel, G. Spence, R. Dutrisac, J. Ripmeester, F. Wright, S. Dallimore, J. Geophys, Res. 110, B10204 (2005)

The first example of a crystalline guest-free form of the tris(5-acetyl-3-thienyl) methane (TATM) host material, P. S. Sidhu, G. D. Enright, K. A. Udachin and J. A. Ripmeester, Chem. Comm. 2092-4 (2005).

Optically reconfigurable azobenzene polymer-based,fiber Bragg filter, Lausten, P. Rochon, M. Ivanov, P. Cheben, S. Janz, P. Desjardins, J. Ripmeester, T. Siebert and A. Stolow, Applied Optics,  44, 7039 – 43 (2005)

Colloidal CdSe Nanocrystals from Tri-n-Octylphosphine: Control of Growth Rate for High Quality and Large-Scale Production by Tuning Cd-to-Se Stoichiometry, K. Yu, B. Zaman, and J. A. Ripmeester, J. NanoScience NanoTechnology 4, 659 (2005) 

Colloidal CdSe Nanocrystals from Tri-n-Octylphosphine: Growth and Optical Properties From Polar and Non-Polar Solvents , K. Yu, B. Zaman, S. Singh, D. Wang, and J. A. Ripmeester,  J. NanoScience NanoTechnology 4, 669 (2005)

Characterisation of the Location and Interfacial States of Gallium in Gallium/MCM-41 Composites, W. Zhang, C. I. Ratcliffe, I. L. Moudrakovski, J. S. Tse, C.-Y. Mou and J. A. Ripmeester, Microporous and Mesoporous Materials, 79, 195–203 (2005)

Gas hydrate saturation and its distribution in the sediments of Mallik 5L-38, MacKenzie Delta, N.W.T., Canada, H. Lu, R.Dutrisac, J. A. Ripmeester, F. Wright and T. Uchida, Bulletin of the Geological Survey of Canada 585, 106 (2005)

Structure and composition of hydrate in sediment recovered from Mallik 5L-38, Mackenzie Delta, NWT, Canada: X-ray diffraction, Raman and Solid-state NMR spectroscopy, J. A. Ripmeester, H. Lu2, I. L. Moudrakovski, R. Dutrisac, L. D. Wilson, F. Wright and S Dallimore, Geological Survey of Canada Bulletin, 585, 89 (2005)

The Efficient Recovery of CO2 from Flue Gas by Clathrate Hydrate Formation in Porous Silica Gels, H. Lee, Y-T. Seo, I. L. Moudrakovski and J. A. Ripmeester, Environm. Sci and Tech.  39, 2315 – 19 (2005)

Synthesis and Characterization of Diverse Coordination Polymers. Linear and Zigzag Chains Involving Their Structural Transformation via Intermolecular Hydrogen-Bonded, Interpenetrating Ladders Polycatenane, and Noninterpenetrating Square Grid from Long, Rigid N,N¢-Bidentate Ligands: 1,4-Bis[( x-pyridyl)ethynyl]benzene ( x) 3 and 4), Md. B. Zaman, K. Udachin, J. A. Ripmeester, M. D. Smith and H.-C. zur Loye, Inorg. Chem. 44, 5047 – 59 (2005)

Sequential Synthesis of Type-II Colloidal CdTe/CdSe Core/Shell Nanocrystals K. Yu, M. B Zaman, S. Romanova, D. Wang, and J. A. Ripmeester, Small 3, 332   (2005)

Inclusion by a fluorenyl host with volatile guests: structures, thermal stability and kinetics, M. R. Caira, T. le Roex, L. R. Nassimbeni, J. A. Ripmeester and E. Weber, Org. Biomol. Chem. 2299-2304 (2005)

Conference Proceedings

Organic Zeolites, DV Soldatov, JA Ripmeester, in Nanoporous Materials IV, M Jaroinec and A Sayari (Eds), Elsevier, Amsterdam, 2005; Stud. Surf. Sci. Catal., vol. 156, pp.37-54.

Flexible Coordination Polymers Functioning as Host and Sorbent Materials,
DV Soldatov, IE Sokolov, AS Zanina, JA Ripmeester, GD Enright, IL Moudrakovski, CI Ratcliffe, in 7th International ISTC SAC Seminar "Scientific Advances in Chemistry: Heterocycles, Catalysis and Polymers as Driving Forces", November 2004, Plenary Lectures and Proceedings of the Conference, Press of the Ural Branch of Russian Academy of Sciences, Ekaterinburg, Russia, 2005, pp. 204-209.

Layers in clathrate hydrates structures,  K. A. Udachin, and J. A. Ripmeester, Fifth International Conference on Gas Hydrates, Trondheim, Norway 2005, V 2, 562-67

Molecular behaviour and guest distribution in the cages of CH4 + THF double hydrate, D. Y. Kim, J. Lee, H. Lee, I. L. Moudrakovski, J. A. Ripmeester, Y-T. Seo, Fifth International Conference on Gas Hydrates, Trondheim, Norway 2005, V2 , 568-72

Some new insights into hydrate formation processes, J. A. Ripmeester, Fifth International Conference on Gas Hydrates, Trondheim, Norway 2005, V. 2, 448-53

Examining the classification of low dosage hydrate inhibitors, H, Zeng, V. K. Walker, J. A. Ripmeester, Fifth International Conference on Gas Hydrates, Trondheim, Norway 2005. Vol. 4, 1295 -99

Recovery of flue gas using clathrate hydrate formation, spectroscopic determination of structure and guest distribution, Y-T. Seo, I. L. Moudrakovski, J. A. Ripmeester, J-W. Lee, D. Y. Kim, J. Park and H. Lee, Fifth International Conference on Gas Hydrates, Trondheim, Norway 2005., V. 4, 1406-1411

Direct Determination of Hydrate Stability using Recovered Natural Gas Hydrate Sample, H. Lu, J. A. Ripmeester, H. Das, Fifth International Conference on Gas Hydrates, Trondheim, Norway 2005, V. 5, 1527 – 31

Antifreeze Proteins, Adsorption to ice, silica and gas hydrates, A. Brown, J. A. Ripmeester, V. K. Walker, B. Wathen and H. Zeng, Fifth International Conference on Gas Hydrates, Trondheim, Norway 2005, V. 1,  1- 7

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