Diguanidinium hydrogenarsenate monohydrate and its deuterated analogue - Vibrational, DSC and X-ray investigations

被引：15

作者：

Drozd, M ^{[1
]}

Baran, J ^{[1
]}

Pietraszko, A ^{[1
]}

机构：

[1] Polish Acad Sci, Inst Low Temp & Struct Res, PL-50422 Wroclaw, Poland

来源：

SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY | 2005年 / 61卷 / 13-14期

关键词：

diguanidinium arsenate monohydrate; X-ray; IR; Raman; IR-microscope; hydrogen bonds; differential scanning calorimetry;

D O I：

10.1016/j.saa.2004.10.027

中图分类号：

O433 [光谱学];

学科分类号：

0703 ; 070302 ;

摘要：

The crystal structure of diguanidinium hydrogen arsenate monohydrate has been found to belong to the P42(1)/c space group of the tetragonal system, with Z = 8, a = 17.114(2) angstrom, c = 7.3500(10) angstrom. In this complex, a network of hydrogen bonds links water molecules and hydrogenarsenate ions. The hydrogenarsenate ions form hydrogen-bonded chains along the crystallographic c-axis. Detailed vibrational studies have been carried out (FTIR and FT-Raman on powder samples, polarized FTIR microscope on a small single crystal at room temperature). The vibrational spectra are discussed in relation to the crystal structure. Calorimetric (DSC) studies have been performed, but no phase transition was found in the temperature range 100-350 K. (c) 2004 Elsevier B.V. All rights reserved.

引用

页码：2809 / 2821

页数：13

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