MONONUCLEAR COMPLEXES OF FIRST-ROW TRANSITION METALS WITH 2-MERCAPTOPYRIDINE N-OXIDE. CRYSTAL STRUCTURE OF TRIS (2-MERCAPTOPYRIDINE N-OXIDE) IRON (Ⅲ) DICHLOROMETHANE SOLVATE

A range of transition metal complexes of 2-mercaptopyridine Noxide have been synthesized and studied by mass spcotroscopic technique. Crystal structure of Fe(ONC5H4S-o)3·CH2C12 has been determined. It crystallizes in mono clinic space group P 21. Crystal data; a=7. 638(3), b=15.038(3). c=9. 464(3) A.β-105.72 (3)°, V=1051. 8 A, Z = 2, Dc= 1. 64g/cm3 μ (MoKa) = 12. 8cm -, F(000) = 526. The structure was determined from 2080 reflections with f≥3σ(I) to convergence factor of R= 0. 051 (R, = 0. 052). The arrangement of the ligands gives the complex a meridional octahedral geometry with mean Fe -S, Fe-O distances and bite angles of 2.419A, 2. 009A , and 81.1°, respectively.