Structural characterization of the borate mineral inyoite - CaB3O3(OH)5•4(H2O)

被引：4

作者：

Frost, Ray L. ^{[1
]}

Lopez, Andres ^{[1
]}

Scholz, Ricardo ^{[2
]}

Theiss, Frederick ^{[1
]}

da Costa, Geraldo Magela ^{[3
]}

机构：

[1] Queensland Univ Technol, Fac Sci & Engn, Sch Chem Phys & Mech Engn, Brisbane, Qld 4001, Australia

[2] Univ Fed Ouro Preto, Sch Mines, Dept Geol, BR-3540000 Ouro Preto, MG, Brazil

[3] Univ Fed Ouro Preto, Dept Chem, BR-3540000 Ouro Preto, MG, Brazil

来源：

JOURNAL OF MOLECULAR STRUCTURE | 2015年 / 1080卷

基金：

澳大利亚研究理事会;

关键词：

Inyoite; Borate; Calcium; Raman spectroscopy; Infrared spectroscopy; AQUEOUS-SOLUTIONS; LIBRATIONAL BAND; VIBRATIONAL SPECTROSCOPY; COLEMANITE;

D O I：

10.1016/j.molstruc.2014.09.079

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：

We have studied the mineral Ca(H4B3O7)(OH)center dot 4(H2O) or CaB3O3(OH)(5)center dot 4(H2O) using electron microscopy and vibrational spectroscopy. The mineral has been characterized by a range of techniques including X-ray diffraction, thermal analysis, electron microscopy with EDX and vibrational spectroscopy. Electron microscopy shows a pure phase and the chemical analysis shows the presence of calcium only. The nominal resolution of the Raman spectrometer is of the order of 2 cm(-1) and as such is sufficient enough to identify separate bands for the stretching bands of the two boron isotopes. Raman and infrared bands are assigned to the stretching and bending modes of trigonal and tetrahedral boron and the stretching modes of the hydroxyl and water units. By using a combination of techniques we have characterized the borate mineral inyoite. (C) 2014 Elsevier B.V. All rights reserved.

引用

页码：99 / 104

页数：6

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