Reactions of diacetylene ligands with trinuclear clusters. I. Reactions of 2,4-hexadiyne-1.6-diol and its dicobalthexacarbonyl derivatives with H2Os3(CO)10

Article abstract of DOI:10.1016/0022-328X(94)24753-6

Reactions of H2Os3(CO)10 with the diyne ligand HOCH2C2C2CH2OH and its dicobalthexacarbonyl derivatives (μ₂,η²-HOCH2C2C2CH2OH) and 2(μ₂,η²:μ₂,η²-HOCH2C2C2CH2OH) have been studied.The reaction of the uncomplexed ligand yields the cluster with the completely rearranged starting ligand.The structure of this compound was determined by a single-crystal X-ray study.The rearranged ligand forms a pseudo-furan ring with the C-CH3 substituent in the α-position.The reactions of H2Os3(CO)10 with the both dicobalthexacarbonyl derivatives yield the (μ-H)(μ-OH)Os3(CO)10 cluster as the main osmium-containing product.The structure of this compound was also established by a single-crystal X-ray study. Keywords: Osmium; Cobalt