PENTACARBONYLS OF RUTHENIUM AND OSMIUM .3. TRIPHENYLPHOSPHINE-SUBSTITUTED CARBONYLS OF RUTHENIUM AND OSMIUM AND THEIR REACTIONS WITH MOLECULAR HYDROGEN

The preparation and characterization of Ru(CO)4P(C6H5)3 and Os(CO)4P(C9H5)3 have been accomplished and a new route to the already known disubstituted Ru(CO)3(P(C6H5)3)2 and Os(CO)3(P(C6H6)3)2 has been found. Reaction with molecular hydrogen on some of these triphenylphosphine-substituted carbonyls has led to OsH2(CO)3P(C6H5)3, RuH2(CO)2(P(C6H5)3)2, and OsH2(CO)2(P(C6H5)3)2. For the latter two compounds, the nuclear magnetic resonance and infrared spectra indicate an octahedral structure with both hydrogens in a cis position and the triphenylphosphine substituents in trans positions. © 1968, American Chemical Society. All rights reserved.