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Crystal and molecular structure of [Ta(H)2(OC6H3Pri 2-2,6)3(PMe2Ph)]: a distorted six-coordinate tantalum dihydride

1992; Royal Society of Chemistry; Issue: 20 Linguagem: Inglês

10.1039/c39920001505

2050-5639

Valerie M. Visciglio, P.E. Fanwick, Ian P. Rothwell,

Synthesis and characterization of novel inorganic/organometallic compounds

Reaction of [Ta(OC6H3Pri2-2,6)3R2](R = CH2C6H4-4-Me) with H2 in the presence of phosphine ligands (L) leads to the dihydride compounds [Ta(H)2(OC6H3Pri2-2,6)3(L)], the solid-state structure of the PMe2Ph derivative shows a geometry about the metal centre that is severely distorted from octahedral; hydrogenation of aryl-phosphines and other aromatic substrates is catalysed by these dihydride compounds.