Mercury–osmium carbonyl clusters resulting from facile Hg–C bond cleavage: reactions of [Os3H2 (CO) 10] with [Hg (CCPh) 2] and [RHgCCHgR](R= Ph, Me or Et)

YK Au, WT Wong

Index: Au, Yat-Kun; Wong, Wing-Tak Journal of the Chemical Society - Dalton Transactions, 1996 , # 6 p. 899 - 911

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Abstract

Reaction of the unsaturated cluster [Os3H2 (CO) 10] with Hg (CCPh) 2 afforded two new Os– Hg clusters cis-[Os (CO) 4 {(µ-Hg) Os3 (CO) 10 (µ-η2-CHCHPh)} 2] 1 and [{Os3 (CO) 10 (µ- η2-CHCHPh)} 2 (µ4-Hg)] 2 in 30 and 20% yield, respectively. Cluster 1 consists of two (µ- Hg) Os3 (CO) 10 (µ-η2-CHCHPh) subunits bonded to a central Os (CO) 4 moiety in the cis configuration which under ambient conditions converts into 2 over 3–5 d with the extrusion ...