Raman spectroscopic study of the arsenite minerals ludlockite Pb Fe43+As10O22 and schneiderhohnite Fe2+Fe33+As53+O6

被引：3

作者：

Bahfenne, Silmarilly ^{[1
]}

Frost, Ray L. ^{[1
]}

机构：

[1] Queensland Univ Technol, Inorgan Mat Res Program, Sch Phys & Chem Sci, Brisbane, Qld 4001, Australia

来源：

SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY | 2009年 / 74卷 / 03期

基金：

澳大利亚研究理事会;

关键词：

Dixenite; Arsenate; Arsenite; Silicate; Raman and infrared spectroscopy;

D O I：

10.1016/j.saa.2009.07.005

中图分类号：

O433 [光谱学];

学科分类号：

0703 ; 070302 ;

摘要：

Raman spectroscopy has been used to study the two arsenite minerals ludlockite and schneiderhohnite, which have a common structural unit of pentameric arsenite groups. Raman bands for ludlockite are observed at 666, 674. 743, 756 and 798 cm(-1) and for schneiderhohnite at 685, 719, 739, 774 and 798 cm(-1). Based upon DFT calculations, the band at 798 cm(-1) is attributed to nu(1) AsO32- symmetric stretching vibration. Raman bands at 743 and 756 cm(-1) for ludlockite and at 719 and 739 cm(-1) for schneiderhohnite are assigned to the nu(3) AsO32-- antisymmetric stretching vibration. Even though the minerals are very dark coloured to black in appearance, successful Raman spectra were collected. (C) 2009 Elsevier B.V. All rights reserved.

引用

页码：625 / 628

页数：4

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