作者:Scott W. Schweiger、Emily E. Freeman、Janet R. Clark、Mark C. Potyen、Phillip E. Fanwick、Ian P. Rothwell
DOI:10.1016/s0020-1693(00)00195-x
日期:2000.9
niobium and tantalum [M(OAr)2(X)2(L)2 ]( MNb, Ta; XCl, Br; Ltertiary phosphine, pyridine) have been isolated by reduction of the corresponding adducts [M(OAr)2(X)3(L)] in the presence of excess L. Crystallographic studies show an all-trans, octahedral arrangement of ligands about the metal center. The effect of the halide, donor ligand and aryloxide substituents upon the structural parameters is discussed