C2 CH3 2 MoRuCo C5H5 CO

Organometalllc Syntheses, Vol. 1, Academic Press, New York, 1965, p. 119. 

Submined by JEROME B. KEISTER, JOHN R. SHAPLEY, ud DEBRA 

Much of the early work in metal cluster chemistry concerned syntheses and reactions of alkylidynetricobalt clusters of the general formula [Cojf/ts CX)(CO)9], where X = H, alkyl, aryl, halo, carboalkoxy, and others. Until the last few years alkylidyne clusters of other metals were limited to a few examples with X = H or CH3 no other series of functionalized methylidyne clusters was available for physical and chemical studies. 

DECACARBONYL- i-HYDRIDCHi-(METHOXY-METHYLIDYNEVr/fMATCf/LO-TRIRUTHENIUM 

The compound [RU3H j(/i3-COCH3)(CO)9] forms bright orange crystals that are mildly air sensitive. It dissolves readily in common organic solvents to give somewhat more air-sensitive solutions. Its IR spectrum in cyclohexane 

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