Optical absorption and EPR spectra of magnesite mineral

被引：1
作者：
Reddy, RR
Reddy, SL [1 ]
Reddy, GS
Reddy, BJ
机构：
[1] SVD Coll, Dept Phys, Cuddapah 516003, India
[2] SVUPG Ctr, Dept Chem, Cuddapah 516001, India
[3] Sri Venkateswara Univ, Dept Phys, Tirupati 517502, Andhra Pradesh, India
来源：
RADIATION EFFECTS AND DEFECTS IN SOLIDS | 2000年 / 153卷 / 01期
关键词：
EPR spectra; optical absorption spectra; octahedral; Mn(II) resonances; Fe(II) plus magnesite mineral;
D O I：
10.1080/10420150008211834
中图分类号：
TL [原子能技术]; O571 [原子核物理学];
学科分类号：
0827 ; 082701 ;
摘要：
EPR spectra of magnesite indicates the presence of Mn(II) in the mineral. The optical absorption spectrum is due to Fe(II) in the mineral and is in octahedral coordination. The concentration of iron in sample is very low where as manganese is not in the detectable range.
引用
收藏
页码：53 / 58
页数：6
相关论文
共 50 条
[41]   The structure and EPR spectra of binuclear copper(II) complexes with acyldihydrazones of β-diketones [J].
Larin, G. M. ;
Shul'gin, V. F. ;
Mel'nikova, E. D. ;
Zub, V. Ya. ;
Chernega, A. N. .
RUSSIAN CHEMICAL BULLETIN, 2009, 58 (07) :1342-1348
[42]   EPR spectra of γ-irradiated DL-α-alanine supported on molecular sieves [J].
Peimel-Stuglik, Zofia ;
Kowalak, Stanislaw ;
Jankowska, Aldona .
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY, 2008, 69 (05) :1395-1404
[43]   The structure and EPR spectra of binuclear copper(II) complexes with acyldihydrazones of β-diketones [J].
G. M. Larin ;
V. F. Shul’gin ;
E. D. Mel’nikova ;
V. Ya. Zub ;
A. N. Chernega .
Russian Chemical Bulletin, 2009, 58 :1342-1348
[44]   EPR-SPECTRA OF 4 GADOLINIUM COMPLEXES WITH SCHIFF-BASES [J].
YAO, KM ;
CHEN, DY ;
FENG, ZX ;
LI, DC ;
FENG, YF ;
HE, L .
SCIENCE IN CHINA SERIES B-CHEMISTRY LIFE SCIENCES & EARTH SCIENCES, 1995, 38 (04) :385-392
[45]   First-principles calculation of optical absorption spectra in conjugated polymers: role of electron-hole interaction [J].
Rohlfing, M ;
Tiago, ML ;
Louie, SG .
SYNTHETIC METALS, 2001, 116 (1-3) :101-105
[46]   OPTICAL ABSORPTION SPECTRA RELATED TO DONOR IMPURITIES IN GaAs/Ga1-xAlxAs RIDGE QUANTUM WIRE [J].
Khordad, R. ;
Bijanzadeh, A. R. .
MODERN PHYSICS LETTERS B, 2009, 23 (30) :3677-3685
[47]   A study of Physical and optical absorption spectra of VO2+ions in potassium and sodium oxide borate glasses [J].
Srinivas, G. ;
Ramesh, B. ;
Kumar, J. Siva ;
Shareefuddin, Md. ;
Chary, M. N. ;
Sayanna, R. .
DAE SOLID STATE PHYSICS SYMPOSIUM 2015, 2016, 1731
[48]   Ab initio analysis of the optical spectra and EPR parameters of Ni2+ ions in CaF2 and CdF2 crystals [J].
Eftimie, Emiliana-Laura Andreici ;
Avram, Calin N. ;
Brik, Mikhail G. ;
Chernyshev, Vladimir A. ;
Avram, Nicolae M. .
JOURNAL OF LUMINESCENCE, 2019, 214
[49]   Investigations on the optical absorption bands and the EPR parameters of rhombic cu2+ center in bis(L-asparaginato)zinc(II) crystal [J].
Zhang, Bao-Fang ;
Lin, Ji-Zi ;
Han, Yu-Feng .
RADIATION EFFECTS AND DEFECTS IN SOLIDS, 2022, 177 (3-4) :267-276
[50]   Optical absorption spectra of Na5, Na6 and Na7 clusters:: a theoretical study [J].
Zhang Yan-Ping ;
Zhang Feng-Shou ;
Meng Ke-Lai ;
Xiao Guo-Qing .
ACTA PHYSICA SINICA, 2007, 56 (04) :2092-2097
12345