Optical absorption and EPR studies on tenorite mineral

被引：4

作者：

Reddy, R. Rama Subba ^{[2
]}

Reddy, S. Lakshmi ^{[1
]}

Rao, P. S. ^{[3
]}

Frost, R. L. ^{[4
]}

机构：

[1] SVD Coll, Dept Phys, Kadapa 516003, India

[2] SVD Coll, Dept Chem, Kadapa 516003, India

[3] Pondicherry Univ, Dept Chem, Pondicherry 605014, India

[4] Queensland Univ Technol, Inorgan Mat Res Program, Brisbane, Qld 4001, Australia

来源：

SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY | 2010年 / 75卷 / 01期

关键词：

Tenorite mineral; EPR spectrum; Optical absorption spectrum; Octahedral symmetry; Cu(II); d(9); structure; d(2) structure; CUPRIC OXIDE; COMPLEXES; SPECTRA;

D O I：

10.1016/j.saa.2009.09.009

中图分类号：

O433 [光谱学];

学科分类号：

0703 ; 070302 ;

摘要：

Optical absorption and EPR studies of the mineral tenorite, a cupric oxide which originated from Mexico and contains 54.40 wt% of CuO. EPR spectral results indicate two Cu(II) closely interacting ions to give a d(2) type Structure. The Calculated spin Hamiltonian at room temperature and liquid nitrogen temperature is g=2.160 and D=125 G. The intensity of resonance line is not the same in low and high field regions. The optical absorption spectrum is due to Cu(II) in which three sets of energies indicating Cu(II) in two independent tetragonal C-4v symmetry, in addition to d(2) structure of octahedral coordination. The octahedral and tetragonal field parameters are compared with those reported for several other copper containing minerals. (C) 2009 Published by Elsevier B.V.

引用

页码：28 / 31

页数：4

共 22 条

[1]

Abragam A., 1970, EPR TRANSITION IONS

[2]

BALLAHAUSEN F, 1959, ACTA CHEM SCAND, V12, P1729

[3]

BASETT J, 1979, VOGELS TXB QUANTITAT

[4]

Chandrasekhar AV, 1997, INDIAN J PURE AP PHY, V35, P71