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Tri-?-ethanethiol-ato-bis-{[?-1,2,3,4-tetra-methyl-5-(trimethyl-silyl)cyclo-penta-dien-yl]iron(II,III)}(Fe-Fe).

ABSTRACT: The title complex, [Fe(2)(C(2)H(5)S)(3)(C(12)H(21)Si)(2)], has an unusual Fe(2)S(3) core. The two 1,2,3,4-tetra-methyl-5-(trimethyl-silyl)cyclo-penta-dienyl (Cp') ligands coordinate to the Fe atoms with their C(5) planes perpendicular [dihedral angles = 88.23?(7) and 88.55?(7)°] to the Fe-Fe vector, building two Cp'Fe subunits. These two subunits are bridged by three thiol-ate ligands. There are no significant differences in the coordination geometries between the two Fe atoms. The short Fe-Fe distance of 2.7842?(5)?Å is clear evidence of an inter-metallic bond. Such a diiron-sulfur structure might act as a model of active sites in some metalloproteins.

SUBMITTER: Li J 

PROVIDER: S-EPMC2972053 | biostudies-literature | 2009 Nov

REPOSITORIES: biostudies-literature

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Tri-μ-ethanethiol-ato-bis-{[η-1,2,3,4-tetra-methyl-5-(trimethyl-silyl)cyclo-penta-dien-yl]iron(II,III)}(Fe-Fe).

Li Jing J  

Acta crystallographica. Section E, Structure reports online 20091107 Pt 12

The title complex, [Fe(2)(C(2)H(5)S)(3)(C(12)H(21)Si)(2)], has an unusual Fe(2)S(3) core. The two 1,2,3,4-tetra-methyl-5-(trimethyl-silyl)cyclo-penta-dienyl (Cp') ligands coordinate to the Fe atoms with their C(5) planes perpendicular [dihedral angles = 88.23 (7) and 88.55 (7)°] to the Fe-Fe vector, building two Cp'Fe subunits. These two subunits are bridged by three thiol-ate ligands. There are no significant differences in the coordination geometries between the two Fe atoms. The short Fe-Fe d  ...[more]

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