The thermolysis products of Os3(CO)11(AsPh3)

Thermolysis of the substituted triosmium cluster Os3(CO)11(AsPh3) in refluxing nonane gave four major products: Os3(μ3-AsPh)(μ3,η2-C6H4)(CO)9, Os3(μ-H)(μ-AsPh2)(μ3,η2-C6H4)(CO)9, Os3(μ-AsPh2)2(μ3,η2-C6H4)(CO)7 and Os3(μ3-AsPh)(μ3,η2-C6H4)(CO)8(AsPh3). All the new clusters have been characterised by spectroscopy and single-crystal X-ray crystallographic studies.