A novel molybdenum-iron-sulfur cluster.: Synthesis, structure, and properties of [Et4N]2[MoFe4S4(SC6H11)7] • 1/2CH3CN

被引：9

作者：

Chen, CN ^{[1
]}

Wen, TB ^{[1
]}

Li, WJ ^{[1
]}

Zhu, HP ^{[1
]}

Chen, YH ^{[1
]}

Liu, QT ^{[1
]}

Lu, JX ^{[1
]}

机构：

[1] Chinese Acad Sci, Fujian Inst Res Struct Matter, State Key Lab Struct Chem, Fujian 350002, Peoples R China

来源：

INORGANIC CHEMISTRY | 1999年 / 38卷 / 10期

关键词：

D O I：

10.1021/ic971474a

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

A reaction system consisting of FeCl2, NaSC6H11, (NH4)(2)MoS4, and Et4NBF4 in methanol affords a novel Mo-Fe-S cluster [Et4N](2)[MoFe4S4(SC6H11)(7)]. 1/2CH(3)CN (1). The compound crystallizes in the monoclinic space group C-2/c, a = 50.762(5) Angstrom, b = 12.230(1) Angstrom, c = 33.228(4) Angstrom, beta = 130.428(10)degrees, V = 15703(3) Angstrom(3), and Z = 8. The structure of the anion is composed of a single MoFe3S4 cubane unit and a Fe(SC6H11)(4) subunit. All the four Fe atoms are tetrahedrally coordinated, and the Mo atom is octahedrally coordinated. The metal formal oxidation levels were deduced as 2Fe((III)) + 2Fe((II)) + Mo-(III) by structural parameters and Mossbauer effect. The effective magnetic moment of the cluster diminishes smoothly with the decreasing of temperature in the range 1.5-300 K showing an antiferromagnetic spin-exchange interaction operating in the cluster.

引用

页码：2375 / 2379

页数：5

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