Electron paramagnetic resonance and optical absorption spectral studies on covellite mineral

被引：7

作者：

Sowjanya, G. ^{[2
]}

Reddy, N. C. G. ^{[3
]}

Reddy, S. Lakshmi ^{[2
]}

Reddy, B. Jagannadha ^{[1
]}

Frost, Ray L. ^{[1
]}

机构：

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

[2] SVD Coll, Dept Phys, Kadapa 516003, Australia

[3] YV Univ, Dept Chem, Kadapa 516003, Australia

来源：

SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY | 2008年 / 71卷 / 03期

关键词：

Covellite; EPR; Optical absorption; NIR Spectroscopy; Copper; Manganese; Iron;

D O I：

10.1016/j.saa.2007.12.053

中图分类号：

O433 [光谱学];

学科分类号：

0703 ; 070302 ;

摘要：

A covellite mineral sample from Coquimbo region, Chile is used in the present Study. An electron paramagnetic resonance (EPR) study on powdered sample confirms the presence of Mn(II) and Cu(II). Optical absorption spectrum indicates that. Fe(II) and Cu(II) impurities are present in octahedral structure. Bands in the near-infrared from 7000 to 5000cm(-1) result from the overtones of the first fundamental OH-stretching modes. (C) 2008 Elsevier B.V. All rights reserved.

引用

页码：751 / 754

页数：4

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