A vibrational spectroscopic study of the borate mineral takedaite Ca3(BO3)2

被引：11

作者：

Frost, Ray L. ^{[1
]}

Lopez, Andres ^{[1
]}

Xi, Yunfei ^{[1
]}

Graca, Leonardo M. ^{[2
]}

Scholz, Ricardo ^{[2
]}

机构：

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

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

来源：

SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY | 2014年 / 132卷

基金：

澳大利亚研究理事会;

关键词：

Takedaite; Borate; Calcium; Raman spectroscopy; Infrared spectroscopy; MOLECULAR-STRUCTURE; FT-IR; RAMAN-SPECTROSCOPY; CRYSTAL-STRUCTURE; INDERITE; SPECTRUM; BORACITE; GLASSES; JAPAN;

D O I：

10.1016/j.saa.2014.06.004

中图分类号：

O433 [光谱学];

学科分类号：

0703 ; 070302 ;

摘要：

We have studied the mineral takedaite Ca-3(BO3)(2), a borate mineral of calcium using SEM with EDX and vibrational spectroscopy. Chemical analysis shows a homogeneous phase, composed of Ca. Boron was not detected. A very intense Raman band at 1087 cm(-1) is assigned to the BO stretching vibration of BO3 units. Additional Raman bands may be due to isotopic splitting. In the infrared spectrum, bands at 1218 cm(-1) and at 1163, 1262 and 1295 cm(-1) are assigned to the trigonal borate stretching modes. Raman bands at 712 and 715 cm(-1) are assigned to the in-plane bending modes of the BO3 units. Vibrational spectroscopy enables aspects of the molecular structure of takedaite to be assessed. (C) 2014 Elsevier B.V. All rights reserved.

引用

页码：833 / 837

页数：5

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