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SINGLE-CRYSTAL EPR, CL-35, CL-37 AND N-14, N-15 ENDOR AND ESEEM STUDIES ON (PH4AS)[TCVINCL4/TCVOCL4] .1. SINGLE-CRYSTAL EPR ON (PH4AS)[TC14,15NCL4/TCOCL4], AND CRYSTAL-STRUCTURE OF (PH4AS)[TCOCL4]

被引：26
作者：
KIRMSE, R
KOHLER, K
ABRAM, U
BOTTCHER, R
GOLIC, L
DEBOER, E
机构：
[1] KARL MARX UNIV, DEPT PHYS, O-7010 LEIPZIG, GERMANY
[2] ACAD SCI GDR, CENT INST NUCL RES ROSSENDORF, O-8051 DRESDEN, GERMANY
[3] KARL MARX UNIV, DEPT PHYS, O-7010 LEIPZIG, GERMANY
[4] EDVARD KARDELJ UNIV, DEPT CHEM, YU-61001 LJUBLJANA, YUGOSLAVIA
[5] CATHOLIC UNIV NIJMEGEN, DEPT MOLEC SPECT, 6525 ED NIJMEGEN, NETHERLANDS
来源：
CHEMICAL PHYSICS | 1990年 / 143卷 / 01期
关键词：
D O I：
10.1016/0301-0104(90)85008-K
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：
A single-crystal EPR study of tetraphenylarsoniumtetrachloro nitrido-technetate (VI), (Ph4As) [Tc15NCl4], diamagnetically diluted by the isoelectronic oxotechnetate (V) complex, and the crystal structure of the host complex are reported. (Ph4As) [TcOCl4] crystallizes tetragonal, space group P4/n, Z=2 with a=b= 12.670(1) and c=7.824(1) Å. The anion possesses C4v symmetry. The EPR spectra are typical of an ion with a 4d1 configuration. At low temperatures very complex 35,37Cl and 15N ligand hyperfine patterns are observed. The 99Tc, 35,37Cl and 15N hyperfine data are analyzed to evaluate the electron spin delocalization: 20% of the spin density is localized in mainly the 3p orbitals of the Cl atoms. © 1990.
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页码：75 / 82
页数：8
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