Open chain and cyclic thioalkyne complexes capable of ligating metal–carbonyl moieties are prepared by the reaction of [Co2(µ-HOCH2C![[triple bond, length half m-dash]](https://www.rsc.org/images/entities/char_e007.gif)
CCH2OH)(CO)6] with mono- and di-thiols in the presence of HBF4 and the structures of [Co2(CO)4(µ-dppm){µ-C2(CH2SMe)2}Mo(CO)4] and [Co2{µ-C2(CH2SCH2CH2)2S}(CO)6] have been established by X-ray crystallography; dppm = bis(diphenylphosphino)methane.
A. Gelling, J. C. Jeffery, D. C. Povey and M. J. Went, J. Chem. Soc., Chem. Commun., 1991, 349 DOI: 10.1039/C39910000349
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