Bis(allyl)ruthenium(iv)-initiated S–S and C–S Bond Cleavages in Tetraalkylthiuram Sulfides. Formation and X-ray Crystal Structures of Dithiocarbamato Complexes

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doi:10.1071/CH09375

Bis(allyl)ruthenium(iv)-initiated S–S and C–S Bond Cleavages in Tetraalkylthiuram Sulfides. Formation and X-ray Crystal Structures of Dithiocarbamato Complexes*

Chang Xu ^A, Sumod A. Pullarkat ^A, Lai Yoong Goh ^A ^B

^A Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University, Singapore 637371, Singapore.
^B Corresponding authors. Email: Sumod@ntu.edu.sg; LaiYoongGoh@ntu.edu.sg





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Australian Journal of Chemistry 62(11) 1537–1543 http://dx.doi.org/10.1071/CH09375
Submitted: 3 July 2009 Accepted: 7 September 2009 Published online: 20 November 2009

Abstract

The direct reaction of [{Ru(η³:η³-C₁₀H₁₆)(μ-Cl)Cl}₂] (1) with tetraalkyldithiuram disulfides [R₂NC(S)S-]₂ (R = Me, ⁱPr) and monosulfide [Me₂NC(S)]₂S led to the formation of orange solids of [Ru(η³:η³-C₁₀H₁₆)(η²-S₂CNR₂)Cl] (2a, R = Me; 2b, R =ⁱPr) in high yields. Reaction of 1 with KPF₆ and monosulfide [Me₂NC(S)]₂S resulted in [Ru(η³:η³-C₁₀H₁₆)(η²-S₂CNMe₂)(CH₃CN)](PF₆) (3). The treatment of 2a with KPF₆ also yielded 3 in quantitative yield. Compounds 2–3 have been spectroscopically and crystallographically characterized.

^* This article was intended for the UQ-NUS Research Front (Volume 62, issue 9).