131 Molybdenum Carbonyl Complexes as Dehydrogenative Catalysts: Relative ACTIVITY TOWARD R3EH, E = Si, Ge and Sn

Wednesday, November 4, 2009: 3:00 PM
Santa Fe (Camino Real Hotel)
Renzo Nelson Arias Ugarte Sr. , Chemistry, University OF Texas At El paso, El Paso, TX
Keith H. Pannell , Department of Chemistry, University of Texas at El Paso, El Paso, TX
Hemant Sharma Sr. , Chemistry, University OF Texas At El paso, El Paso, TX
Alejandro Metta Sr. , Chemistry, University OF Texas At El paso, El Paso, TX
We report the use of cyclopentadienyl molybdenum alkyl complexes (C5H5)Mo(CO)3Me, and (C5H5)Mo(CO)2(PPh3)Me to catalyze interesting dehydrogenative reactions with group 14 hydrides. Compounds of the type R2SnH2, R2SiH2, R3SnH, R3SiH, R3GeH have been treated to catalytic amounts of the catalysts to form, depending the conditions (thermal or photochemical) and solvents: siloxanes, germoxanes, silanols, stannoxanes and distannanes. In the case of stannanes redistribution reactions involving formation of R4Sn were also observed. Isolation of a reactive Mo-Sn bonded catalytic species was achieved and its single crystal analysis obtained. We thank to the Welch Foundation, Houston, TX for support.
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