Mixed-metal chalcogenide tetrahedral clusters with an exo-polyhedral metal fragment

Yuvaraj, K. ; Roy, Dipak Kumar ; Anju, V. P. ; Mondal, Bijnaneswar ; Varghese, Babu ; Ghosh, Sundargopal (2014) Mixed-metal chalcogenide tetrahedral clusters with an exo-polyhedral metal fragment Dalton Transactions, 43 (45). pp. 17184-17190. ISSN 1477-9226

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Official URL: http://pubs.rsc.org/en/content/articlelanding/2014...

Related URL: http://dx.doi.org/10.1039/C4DT02329C


The reaction of metal carbonyl compounds with group 6 and 8 metallaboranes led us to report the synthesis and structural characterization of several novel mixed-metal chalcogenide tetrahedral clusters. Thermolysis of arachno-[(Cp*RuCO)2B2H6], 1, and [Os3(CO)12] in the presence of 2-methylthiophene yielded [Cp*Ru(CO)2(μ-H){Os3(CO)9}S], 3, and [Cp*Ru(μ-H){Os3(CO)11}], 4. In a similar fashion, the reaction of [(Cp*Mo)2B5H9], 2, with [Ru3(CO)12] and 2-methylthiophene yielded [Cp*Ru(CO)2(μ-H){Ru3(CO)9}S], 5, and conjuncto-[(Cp*Mo)2B5H8(μ-H){Ru3(CO)9}S], 6. Both compounds 3 and 5 can be described as 50-cve (cluster valence electron) mixed-metal chalcogenide clusters, in which a sulfur atom replaces one of the vertices of the tetrahedral core. Compounds 3 and 5 possess a [M3S] tetrahedral core, in which the sulfur is attached to an exo-metal fragment, unique in the [M3S] metal chalcogenide tetrahedral arrangements. All the compounds have been characterized by mass spectrometry, IR, and 1H, 11B and 13C NMR spectroscopy in solution, and the solid state structures were unequivocally established by crystallographic analysis of compounds 3, 5 and 6.

Item Type:Article
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ID Code:110813
Deposited On:31 Jan 2018 12:31
Last Modified:31 Jan 2018 12:31

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