Vibrational spectroscopy of natural augelite

被引：68
作者：
Frost, RL [1 ]
Weier, ML [1 ]
机构：
[1] Queenland Univ Technol, Sch Phys & Chem Sci, Inorgan Mat Res Program, Brisbane, Qld 4001, Australia
来源：
JOURNAL OF MOLECULAR STRUCTURE | 2004年 / 697卷 / 1-3期
基金：
澳大利亚研究理事会;
关键词：
augelite; berlinite; variscite; wavellite; Raman spectroscopy; infrared spectroscopy;
D O I：
10.1016/j.molstruc.2004.04.012
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：
The vibrational spectra of natural augelite (Al-2(OH)(3)(PO4)) including the infrared at 298 K and Raman spectra at 298 and 77 K have been obtained and related to the crystallography of the mineral. Bands are identified in terms of the fundamental vibrating units namely PO4, Al2OH and Al3OH. The use of infrared and Raman OH stretching wavenumbers using a Libowitzky type function enabled hydrogen bond distances of 2.96, 2.84 and 2.72 Angstrom to be estimated. The hydrogen bonds formed by the Al2OH units are weaker than that of the Al3OH units. (C) 2004 Elsevier B.V. All rights reserved.
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页码：207 / 211
页数：5
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