Electronic state of rhenium complexes with octahedral chalcocyanide cluster anions [Re6Q8(CN)6]3- (Q=S, Se, Te).: EPR and magnetic susceptibility studies

被引：16
|
作者：
Larina, TV
Ikorskii, VN
Vasenin, NT
Anufrienko, VF
Naumov, NG
Ostanina, EV
Fedorov, VE
机构：
[1] Russian Acad Sci, Inst Inorgan Chem, Novosibirsk 630090, Russia
[2] Russian Acad Sci, Inst Catalysis, Novosibirsk 630090, Russia
来源：
RUSSIAN JOURNAL OF COORDINATION CHEMISTRY | 2002年 / 28卷 / 08期
基金：
俄罗斯基础研究基金会;
关键词：
Spectroscopy; Physical Chemistry; 2H2O; Magnetic Susceptibility; Exchange Interaction;
D O I：
10.1023/A:1019753528678
中图分类号：
O61 [无机化学];
学科分类号：
070301 ; 081704 ;
摘要：
Compounds (Ph4P)(3)[Re6S8(CN)(6)] (I), (Ph4P)(2)(H)[Re6Se8(CN)(6)] . 4H(2)O (II), and (Bu4N)(2)(H)[Re6Te8(CN)(6)] . 2H(2)O (III) were synthesized and studied using EPR spectroscopy and magnetic susceptibility methods. The [Re(6)Q(8)(CN)(6)](3-) Cluster anions (Q = S, Se, Te) were found to be paramagnetic; at 300 K, mu(eff) of complexes I, II, and III is equal to 2.01, 1.90, and 1.96 mu(B), respectively. Magnetic susceptibility chi measured in the 2-300 K range suggested insignificant exchange interaction between paramagnetic centers. The parameters of the EPR spectra of complexes I and II (g = 2.51 and 2.56; DeltaH = 330 and 460 G, respectively) indicated that the unpaired electron is located near S or Se atoms.
引用
收藏
页码：554 / 556
页数：3
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