Insertion reactions of CS2, COS, and PhNCS at thiolate-bridged diiron centers

Yanhui Chen; Ying Peng; Pingping Chen; Jinfeng Zhao; Litao Liu; Yang Li; Shuoyi Chen; Jingping Qu

doi:10.1039/B920144K

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Insertion reactions of CS₂, COS, and PhNCS at thiolate-bridged diiron centers†

Yanhui Chen,^a Ying Peng,^a Pingping Chen,^a Jinfeng Zhao,^a Litao Liu,^a Yang Li,^a Shuoyi Chen^a and Jingping Qu*^a

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* Corresponding authors

^a State Key Laboratory of Fine Chemicals, School of Chemical Engineering, Dalian University of Technology, Dalian, P. R. China
E-mail: Qujp@dlut.edu.cn, Qujp@chem.dlut.edu.cn
Fax: +86-411-8363-3080

Abstract

Treatment of [Cp*Fe(μ₂-SR)₃FeCp*] (1a, R = Et; 1b, R = Me) with CS₂ obtains the insertion products [Cp*Fe(μ₂-SR)₂(μ-η²-S₂CSR)FeCp*] (2a, R = Et; 2b, R = Me) with the retained Fe₂S₂ subunit in excellent yield. 2a and 2b represent the first examples for the CS₂ activation and incorporation at the diiron–SR bond. [Cp*Fe(μ₂-SEt)₂(μ-η²-S₂)FeCp*] (3) is prepared from COS and 1a through the decarbonylation and sulfur coupling reaction of COS resulting in the formation of S₂²⁻ ligand. Addition of PhNCS into 1a affords a mononuclear complex [Cp*Fe(SEt)(η²-SC(SEt)NPh)] (4). 1a is found to be unreactive towards CO₂. The spectral characterization, X-ray diffraction analysis, and electrochemistry of the insertion products have also been described.

This article is part of the themed collection: Bioinspired catalysis

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DOI: https://doi.org/10.1039/B920144K
Article type: Paper
Submitted: 30 Sep 2009
Accepted: 16 Nov 2009
First published: 23 Dec 2009

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Dalton Trans., 2010,39, 3020-3025

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Insertion reactions of CS₂, COS, and PhNCS at thiolate-bridged diiron centers

Y. Chen, Y. Peng, P. Chen, J. Zhao, L. Liu, Y. Li, S. Chen and J. Qu, Dalton Trans., 2010, 39, 3020 DOI: 10.1039/B920144K

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Dalton Transactions