Abstract

R. N. Pandey ^1* and Pramila Sharma²

DOI : http://dx.doi.org/10.13005/ojc/290240

Niobium(V) and Tantalum(V) Complexes [MLX4] (where M = Nb/Ta; X = Cl/NCS; L = 2-aminothiophenol or 2-aminophenol) have been synthesised and characterised on the basis of elemental analysis, conductivity measurements, Ir, UV-vis and ‘H NMR studies. The ligands behaves as mononegative bidentate donor. The value of magnetic moment of 0.35 – 0.43 BM is a consequence of combined effects of spin-orbit coupling and distortions of the ligand field from a full octahedral symmetry.

Nb(V); Ta(V); Six Coordinate; Iso-structural

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