Nucleophilic addition of hydrazines at bridging isocyanate to give urea-type ligands
Abstract
The clusters [Os3(CO)12–x(MeCN)x](x= 0, 1 or 2) react with hydrazine or 1,1′-dimethylhydrazine to give the compounds [Os3H(CO)10(NHCONHNR2)](R = H or Me) which have also been formed by addition of NH2NR2 to [Os3H(NCO)(CO)10], itself formed from HNCO and [Os3(CO)10(MeCN)2].