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Synthesis, Structural Characterization and Conversion of Dinuclear Iron-Sulfur Clusters Containing the Disulfide Ligand: [Cp*Fe(μ-η

Synthesis, Structural Characterization and Conversion of Dinuclear Iron-Sulfur Clusters Containing the Disulfide Ligand: [Cp*Fe(μ-η

Xiaoxiao Ji, Peng Tong, Dawei Yang, Baomin Wang, Jinfeng Zhao, Yang Li, Jingping Qu

Dalton Trans. 2017 Mar 21;46(12):3820-3824.

PMID: 28265627

Abstract:

The treatment of [Cp*Fe(μ-η2:η4-bdt)FeCp*] (1, Cp* = η5-C5Me5, bdt = benzene-1,2-dithiolate) with 1/4 equiv. of elemental sulfur (S8) gave a dinuclear iron-sulfur cluster [Cp*Fe(μ-η2:η2-bdt)(cis-μ-η1:η1-S2)FeCp*] (2), which contains a cis-1,2-disulfide ligand. When complex 2 further interacted with 1/8 equiv. of S8, another sulfur atom inserted into an Fe-S bond to give a rare product [Cp*Fe(μ-S(C6H4S2))(cis-μ-η1:η1-S2)FeCp*] (3). Unexpectedly, a trans-1,2 disulfide-bridged diiron complex [{Cp*Fe(bdt)}2(trans-μ-η1:η1-S2)] (4) was isolated from the reaction of complex 1 with 1/2 equiv. of S8, which represents a structural isomer of [2Fe-2S] ferredoxin-type clusters. In addition, cis-1,2-disulfide-bridged complex 3 can slowly convert into trans-1,2-disulfide-bridged complex 4 and the complex [Cp*Fe(μ-η2:η2-S2)(cis-μ-η1:η1-S2)FeCp*] (5) by self-assembly reaction at ambient temperature, which is evidenced by time-dependent 1H NMR spectroscopy.

Chemicals Related in the Paper:

Catalog Number	Product Name	Structure	CAS Number	Price
AP3879605	2-trans,6-cis-Farnesol		3879-60-5	Price

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