Calorimetric and Structural Studies of Tetrabutylammonium Chloride Ionic Clathrate Hydrates

被引：81
|
作者：
Rodionova, T. [1 ]
Komarov, V. [1 ]
Villevald, G. [1 ]
Aladko, L. [1 ]
Karpova, T. [1 ]
Manakov, A. [1 ]
机构：
[1] Nikolaev Inst Inorgan Chem SB RAS, Novosibirsk 630090, Russia
来源：
JOURNAL OF PHYSICAL CHEMISTRY B | 2010年 / 114卷 / 36期
关键词：
TETRA-N-BUTYL; AMMONIUM BROMIDE; DISSOCIATION ENTHALPIES; PHASE-EQUILIBRIUM; ORGANIC-COMPOUNDS; AQUEOUS-SOLUTIONS; HYDROGEN STORAGE; FLUORIDE HYDRATE; HIGH-PRESSURES; TBAB HYDRATE;
D O I：
10.1021/jp103939q
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Three ionic clathrate hydrates of different water content are formed in the binary system tetrabutylammonium chloride water. The data on heats of fusion of these hydrates measured by DSC are presented. Single-crystal and powder X-ray diffraction studies of ionic clathrate hydrates of tetrabutylammonium chloride have been carried out. Structural justification of the occurrence of three different ionic clathrate hydrates derived from tetragonal structure-1 in the (C(4)H(9))(4)NCl-H(2)O system has been found for the first time. A novel mode of hydrophilic inclusion of the halide anion with displacement of two hydrogen-bonded host water molecules has been revealed. Structural data obtained are indicative of the possibility of location of tetrabutylammonium cations in combined cavities formed with participation of D-voids.
引用
收藏
页码：11838 / 11846
页数：9
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