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41. H. Kiefte, M.J. Clouter, R.E. Gagnon, Determination of acoustic velocities of clathrate hydrates
by brillouin spectroscopy. J. Phys. Chem. 89, 3103–3108 (1985)
42. W.B. Durham, L.A. Stern, S.H. Kirby, Ductile flow of methane hydrate. Can. J. Phys. 81,
373–380 (2003)
43. S.R. Gough, S.K. Garg, D.W. Davidson, Ordering of guest-molecule dipoles in structure 1
clathrate hydrate of trimethylene oxide. Chem. Phys. 3, 239–247 (1974)
44. Y.R. Shen, The Principles of Nonlinear Optics (Wiley-Interscience, New York, 1984)
45. M. Bylov, P. Rasmussen, Experimental determination of refractive index of gas hydrates. Chem.
Eng. Sci. 52, 3295–3301 (1997)
46. W.L. Du Frane, L.A. Stern, K.A. Weitemeyer, S. Constable, J.C. Pinkston, J.J. Roberts,
Electrical properties of polycrystalline methane hydrate. Geophys. Res. Lett. 38 (2011)
47. J.H. Vanderwaals, J.C. Platteeuw, Clathrate solutions. Adv. Chem. Phys. 2, 1–57 (1959)
48. A. Chapoy, A.H. Mohammadi, D. Richon, B. Tohidi, Gas solubility measurement and modeling
for methane-water and methane-ethane-n-butane-water systems at low temperature conditions.
Fluid Phase Equilib. 220, 113–121 (2004)
49. P.W. Wilson, A.D.J. Haymet, Workman-Reynolds freezing potential measurements between
ice and dilute salt solutions for single ice crystal faces. J. Phys. Chem. B 112, 11750–11755
(2008)
50. L. del Rosso, M. Celli, L. Ulivi, New porous water ice metastable at atmospheric pressure
obtained by emptying a hydrogen-filled ice. Nature Commun. 7 (2016)
51. L. del Rosso, F. Grazzi, M. Celli, D. Colognesi, V. Garcia-Sakai, L. Ulivi, Refined structure
of metastable ice XVII from neutron diffraction measurements. J. Phys. Chem. C 120, 26955–
26959 (2016)
52. M.G.E. Vanhinsberg, M.I.M. Scheerboom, J.A. Schouten, The vibrational-spectra of N2 in
clathrate-hydrates—a new high-pressure phase-transition. J. Chem. Phys. 99, 752–754 (1993)
53. M.G.E. Vanhinsberg, J.A. Schouten, The Phase-Diagram of Nitrogen Clathrate Hydrate. HighPressure Science and Technology—1993, Pts 1 and 2, ed. by S.C. Schmidt, et al. (1994),
pp. 271–274
54. H. Hirai, T. Kondo, M. Hasegawa, T. Yagi, Y. Yamamoto, T. Komai, K. Nagashima, M.
Sakashita, H. Fujihisa, K. Aoki, Methane hydrate behavior under high pressure. J. Phys. Chem.
B 104, 1429–1433 (2000)
55. I.M. Chou, A. Sharma, R.C. Burruss, J.F. Shu, H.K. Mao, R.J. Hemley, A.F. Goncharov, L.A.
Stern, S.H. Kirby, Transformations in methane hydrates. Proc. Natl. Acad. Sci. U.S.A. 97,
13484–13487 (2000)
56. J.S. Loveday, R.J. Nelmes, M. Guthrie, S.A. Belmonte, D.R. Allan, D.D. Klug, J.S. Tse, Y.P.
Handa, Stable methane hydrate above 2 GPa and the source of Titan’s atmospheric methane.
Nature 410, 661–663 (2001)
57. J.S. Loveday, R.J. Nelmes, M. Guthrie, High-pressure transitions in methane hydrate. Chem.
Phys. Lett. 350, 459–465 (2001)
58. J.S. Loveday, R.J. Nelmes, M. Guthrie, D.D. Klug, J.S. Tse, Transition from cage clathrate to
filled ice: the structure of methane hydrate III. Phys. Rev. Lett. 87 (2001)
59. A.V. Kurnosov, A.Y. Manakov, V.Y. Komarov, V.I. Voronin, A.E. Teplykh, Y.A. Dyadin, A new
gas hydrate structure. Dokl. Phys. Chem. 381, 303–305 (2001)
60. A.Y. Manakov, V.I. Voronin, A.V. Kurnosov, A.E. Teplykh, E.G. Larionov, Y.A. Dyadin, Argon
hydrates: structural studies at high pressures. Dokl. Phys. Chem. 378, 148–151 (2001)
61. H. Shimizu, S. Hori, T. Kume, S. Sasaki, Optical microscopy and Raman scattering of a single
crystalline argon hydrate at high pressures. Chem. Phys. Lett. 368, 132–138 (2003)
62. J.S. Loveday, R.J. Nelmes, High-pressure gas hydrates. Phys. Chem. Chem. Phys. 10, 937–950
(2008)
63. L. 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, Synthesis and characterization of a new structure
of gas hydrate. Proc. Natl. Acad. Sci. U.S.A. 106, 6060–6064 (2009)
64. P. Skovborg, P. Rasmussen, A mass-transport limited model for the growth of methane and
ethane gas hydrates. Chem. Eng. Sci. 49, 1131–1143 (1994)