Oriented solids as a colloid suspension in nematic liquid crystal - New tool for IR-spectroscopic and structural elucidation of inorganic compounds and glasses

被引:7
作者
Kolev, Ts. [1 ,2 ]
Koleva, B. B. [3 ]
Schivachev, B. [4 ]
机构
[1] Paisij Hilendarski Univ Plovdiv, Dept Organ Chem, BG-4000 Plovdiv, Bulgaria
[2] Bulgarian Acad Sci, Inst Organ Chem, BU-1113 Sofia, Bulgaria
[3] Sofia Univ St Kl Ohridsky, Fac Chem, Dept Analyt Chem, Sofia 1164, Bulgaria
[4] Bulgarian Acad Sci, Cent Lab Mineral & Crystallog, BU-1113 Sofia, Bulgaria
关键词
IR-LD spectroscopy; colloid suspension; structural elucidation; alpha-TeO2; V2O5; MoO3 center dot H2O; beta-BaB2O4; SrB4O7; H3BO3 and B2O3; tellurite and borate glasses; solid state;
D O I
10.1016/j.ica.2007.10.030
中图分类号
O61 [无机化学];
学科分类号
070301 [无机化学]; 081704 [应用化学];
摘要
Possibilities of the linear-polarized infrared (IR-LD) spectroscopy of oriented colloid suspensions in nematic liquid crystals, for structural and local structural elucidation for first time are demonstrated of inorganic compounds and glasses. The advantages of the method for tellurite and borate glasses are shown. The IR-band assignment of the typical local structural units in the glasses are proposed by a comparison with the IR-characteristics of appropriate crystalline analogues as alpha-TeO2, V2O5, MoO3 center dot H2O and its high temperature form. The IR-spectroscopic characteristics of BO3, BO4 and boroxol ring are elucidated, using crystalline beta-BaB2O4, SrB4O7, H3BO3 and B2O3 as model systems, where the structural moieties have been refined by single crystal X-ray diffraction. (c) 2007 Elsevier B.V. All rights reserved.
引用
收藏
页码:2002 / 2012
页数:11
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