in decane Kinetics; a soln. of HOs3(μ-COMe)(CO)10 contaminated with HOs3(μ-OMe)(CO)10and AsPh3 in decane was heated at 110°C under N2 for 5 h (react.was monitored by IR at 90-110°C under various conditions); solvent was removed under vac., residue purified by thin layer chromy. on silica eluting with 10percent CH2Cl2 in hexane;