Crystal and molecular structures of tert-butyltetrakis(dimethylamido)tantalum(V), bromo(p-tolyl)tris(dimethylamido)tantalum(V), and [(trimethylsilyl)methyl]tetrakis(N,N-dimethylcarbamato)tantalum(V). Evidence for stabilization of .sigma.-alkyl ligands by strongly .pi.-donating ligands in early transition metal chemistry
Crystal and molecular structures of tert-butyltetrakis(dimethylamido)tantalum(V), bromo(p-tolyl)tris(dimethylamido)tantalum(V), and [(trimethylsilyl)methyl]tetrakis(N,N-dimethylcarbamato)tantalum(V). Evidence for stabilization of .sigma.-alkyl ligands by strongly .pi.-donating ligands in early transition metal chemistry