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Journal of Coordination Chemistry Volume 66, 2013 - Issue 8
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Articles

Synthesis and structural characterization of ruthenium complexes with 1-aryl-imidazole-2-thione

Yi Qin Department of Applied Chemistry, School of Petrochemical Engineering, Changzhou University, Changzhou, P.R. China
,
Qing Ma Department of Applied Chemistry, School of Petrochemical Engineering, Changzhou University, Changzhou, P.R. China; Institute of Molecular Engineering and Applied Chemistry, Anhui University of Technology, Ma’anshan, P.R. China
,
Ai-Quan Jia Department of Applied Chemistry, School of Petrochemical Engineering, Changzhou University, Changzhou, P.R. China
,
Qun Chen Department of Applied Chemistry, School of Petrochemical Engineering, Changzhou University, Changzhou, P.R. China
&
Qian-Feng Zhang Department of Applied Chemistry, School of Petrochemical Engineering, Changzhou University, Changzhou, P.R. China; Institute of Molecular Engineering and Applied Chemistry, Anhui University of Technology, Ma’anshan, P.R. ChinaCorrespondence[email protected]
Pages 1405-1415 | Received 10 Sep 2012, Accepted 17 Jan 2013, Published online: 15 Apr 2013
 
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Abstract

Treatment of [RuCl2(PPh3)3] with 2 equiv. HimtMPh (HimtMPh = 1-(4-methyl-phenyl)-imidazole-2-thione) in the presence of MeONa afforded cis-[Ru(κ 2-S,N-imtMPh)2(PPh3)2] (1), while interaction of [RuCl2(PPh3)3] and 2 equiv. HimtMPh in tetrahydrofuran (THF) without base gave [RuCl2(κ 1-S-HimtMPh)2(PPh3)2] (2). Treatment of [RuHCl(CO)(PPh3)3] with 1 equiv. HimtMPh in THF gave [RuHCl(κ 1-S-HimtMPh)(CO)(PPh3)2] (3), whereas reaction of [RuHCl(CO)(PPh3)3] with 1 equiv. of the deprotonated [imtMPh]− or [imtNPh]− (imtNPh = 1-(4-nitro-phenyl)-2-mercaptoimidazolyl) gave [RuH(κ 2-S,N-imtRPh)(CO)(PPh3)2] (R = M 4a, R = N 4b). The ruthenium hydride complexes 4a and 4b easily convert to their corresponding ruthenium chloride complexes [RuCl(κ 2-S,N-imtMPh)(CO)(PPh3)2] (5a) and [RuCl(κ 2-S,N-imtNPh)(CO)(PPh3)2] (5b), respectively, in refluxing CHCl3 by chloride substitution of the RuH. Photolysis of 5a in CHCl3 at room temperature afforded an oxidized product [RuCl2(κ 2-S,N-imtMPh)(PPh3)2] (6). Reaction of 6 with excess [imtMPh]− afforded 1. The molecular structures of 1·EtOH, 3·C6H14, 4b·0.25CH3COCH3, and 6·2CH2Cl2 have been determined by single-crystal X-ray crystallography.

Acknowledgment

This project was supported by the Natural Science Foundation of China (Grant Nos. 20771003 and 21201003).

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