Nikolaev Institute of Inorganic Chemistry SB RAS, 3, Acad. Lavrentieva Avenue, Novosibirsk, 630090.
J Phys Chem B. 2010 Sep 16;114(36):11838-46. doi: 10.1021/jp103939q.
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-I 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.
在四丁基氯化铵-水的二元体系中形成了三种不同含水量的离子包合物水合物。本文介绍了用 DSC 测量这些水合物的熔融热的数据。对四丁基氯化铵离子包合物水合物的单晶和粉末 X 射线衍射研究已经进行。首次发现，在（C4H9）4NCl-H2O 体系中，源自四方晶系-I 的三种不同离子包合物水合物的出现具有结构合理性。揭示了卤化物阴离子与两个氢键合的主体水分子置换的亲水包含的新方式。所获得的结构数据表明，四丁基铵阳离子有可能位于由 D-空隙参与形成的组合腔中。
