Activation of a carbonyl group in the pentanuclear carbido clusters Os5C(CO)15 and I2Os5C(CO)15 by alcohols: X-ray analysis of HOs5C(CO)14(CO2Et) and IOs5C(CO)14(CO2Me)
Abstract
The clusters Os5C(CO)15 and I2Os5C(CO)15 react with alcohols under mild conditions to give derivatives of the type HOs5C(CO)14(CO2R) and IOs5C(CO14)(CO2R), reapectively; X-ray analysis has confirmed that in both cases the alkoxy-group has attacked a carbonyl ligand in the parent compound to form an η2-µ2-CO2R Group.