water-argon complex | 148363-02-4

• 分子结构分类: 无机化合物 - 均质非金属化合物 - 其他非金属有机物
• 英文名称: water-argon complex
• 英文别名: Argon-water；argon;hydrate
• CAS: 148363-02-4
• 化学式: Ar*H₂O
• 分子量: 57.9633
• InChiKey: CMBZEFASPGWDEN-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  -0.82
• 重原子数：
  2
• 可旋转键数：
  0
• 环数：
  0.0
• sp3杂化的碳原子比例：
  0.0
• 拓扑面积：
  1
• 氢给体数：
  1
• 氢受体数：
  1

反应信息

• 作为反应物：
  描述：

  water-argon complex 以 neat (no solvent) 为溶剂， 生成 水 、 氩
  参考文献：
  名称：

  Structural Changes of Argon Hydrate under High Pressure

  摘要：

  Structural changes of argon hydrate were investigated in a pressure range of 0.2 to 6.5 GPa at room temperature using a diamond anvil cell. In-situ X-ray diffractometry and optical microscopy revealed a sequence of three different structures in this pressure-temperature range. Argon hydrate exhibited a well-known cubic structure II at the pressure range of 0.2 to 0.6 GPa. At 0.7 GPa the cubic structure II transformed into a tetragonal phase. At 1.1 GPa, the tetragonal phase further transformed into a body-centered orthorhombic phase, which survived pressures up to 6.0 GPa. At pressures higher than 6.1 GPa, the orthorhombic phase decomposed into solid argon and ice VII. Structural analysis showed that the tetragonal structure observed was composed of two 14-hedra occupying two argon atoms in a unit cell, which was very similar to the tetragonal structure reported in previous literature. The body-centered orthorhombic structure observed was explained as a "filled-ice" structure, a newly reported structure in a water-methane system at high pressure. These results showed that the cubic structure II of argon hydrate was transformed, by way of a tetragonal cage structure, into just such a "filled-ice" structure.

  DOI：

  10.1021/jp021458l
• 作为产物：
  描述：

  水 、 氩 以 neat (no solvent) 为溶剂， 生成 water-argon complex
  参考文献：
  名称：

  氩气的高压水合物：组成和状态方程

  摘要：

  在室温下，使用活塞-汽缸装置研究了高压氩气水合物不同相之间转变所对应的体积变化。这些数据与从文献中获得的数据相结合，使我们可以获得关于氩的高压水合物的状态方程和组成方程的自洽数据集。

  DOI：

  10.1021/jp204024p

文献信息

• Depletion modulation of Ar–H2O in a supersonic planar plasma
  作者：D. Verdes、H. Linnartz

  DOI：10.1016/s0009-2614(02)00298-1

  日期：2002.4

  A sensitive detection technique for tunable diode laser spectroscopy is presented that is suited to study rotationally resolved spectra of weakly bound complexes, The method uses a low energetic plasma source to achieve an efficient concentration modulation in a supersonic planar jet expansion. The method is demonstrated with rotationally resolved spectra of the Pi(1(10)) <-- Sigma(1(01)) and Pi(2(12)) <-- Sigma(1(01)) internal rotation/vibration bands of ortho Ar-H2O in the v(2) bend region of H2O. The latter transition has not been reported before and is recorded at 1658.0309(6) cm(-1). (C) 2002 Elsevier Science B.V. All rights reserved.
• Measurement of the perpendicular rotation‐tunneling spectrum of the water dimer by tunable far infrared laser spectroscopy in a planar supersonic jet
  作者：Kerry L. Busarow、R. C. Cohen、Geoffrey A. Blake、K. B. Laughlin、Y. T. Lee、R. J. Saykally

  DOI：10.1063/1.455804

  日期：1989.4.15

  Fifty-six transitions from the K=1 lower→K=2 lower tunneling–rotation band of water dimer have been measured and assigned at 22 cm−1 by direct absorption spectroscopy in a cw planar supersonic jet expansion using a tunable far infrared laser spectrometer. Two different models were used to fit the data and several spectroscopic constants were determined for the upper and lower states. This work supports the local IAM model recently proposed by Coudert and Hougen for the hydrogen bond tunneling dynamics of the water dimer. This model includes four different tunneling motions, all of which contribute to the observed tunneling splittings. This is the most complicated hydrogen bonded system considered to be well understood at this time, at least in the lowest few K states.
• Non-stoichiometric clathrate compounds of water. Part 4.—Kinetics of formation of clathrate phases
  作者：R. M. Barrer、D. J. Ruzicka

  DOI：10.1039/tf9625802262

  日期：——
• Gas Hydrates of Argon and Methane Synthesized at High Pressures:  Composition, Thermal Expansion, and Self-Preservation
  作者：Andrey G. Ogienko、Alexander V. Kurnosov、Andrey Y. Manakov、Eduard G. Larionov、Aleksei I. Ancharov、Mikhail A. Sheromov、Anatoly N. Nesterov

  DOI：10.1021/jp053915e

  日期：2006.2.1

  For the first time, the compositions of argon and methane high-pressure gas hydrates have been directly determined. The studied samples of the gas hydrates were prepared under high-pressure conditions and quenched at 77 K. The composition of the argon hydrate (structure H, stable at 460-770 MPa) was found to be Ar(3.27 +/- 0.17)H2O. This result shows a good agreement with the refinement of the argon hydrate structure using neutron powder diffraction data and helps to rationalize the evolution of hydrate structures in the Ar-H2O system at high pressures. The quenched argon hydrate was found to dissociate in two steps. The first step (170-190 K) corresponds to a partial dissociation of the hydrate and the self-preservation of a residual part of the hydrate with an ice cover. Presumably, significant amounts of ice Ic form at this stage. The second step (210-230 K) corresponds to the dissociation of the residual part of the hydrate. The composition of the methane hydrate (cubic structure 1, stable up to 620 MPa) was found to be CH4 center dot 5.76H(2)O. Temperature dependence of the unit cell parameters for both hydrates has been also studied. Calculated from these results, the thermal expansivities for the structure H argon hydrate are alpha(a) = 76.6 K-1 and alpha(c) = 77.4 K-1 (in the 100-250 K temperature range) and for the cubic structure I methane hydrate are alpha(a) = 32.2 K-1, alpha(a) = 53.0 K-1, and alpha(a) = 73.5 K-1 at 100, 150, and 200 K, respectively.
• Infrared response of glassy Ar:<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:msub><mml:mrow><mml:mi mathvariant="normal">O</mml:mi></mml:mrow><mml:mrow><mml:mn>2</mml:mn></mml:mrow></mml:msub></mml:mrow></mml:math>mixed crystals
  作者：Jushan Xie、Mechthild Enderle、Klaus Knorr、H. J. Jodl

  DOI：10.1103/physrevb.55.8194

  日期：——

  Solid solutions Ar1-x(O-2)(x), 0.2