Polymetallic complexes. Part-CI : Dimeric and tetrameric CoII, NiII, CuII, znII, Cdll and Hgll complexes with tetra and octadentate azodye ligands

Silicon Institute of Technology, Sason, Sambalpur, Orissa, India
E-mail : mahapatra. bipin@yahoo.com
P.G. Department of Chemistry, G. M. Autonomous College, Sambalpur, Orissa, India
E-mail : sarojbadmal@yahoo.com
Manuscript received 16 June 2010, revised 27 January 2011, accepted 02 February 2011

Six dimeric and six tetrameric complexes of Co^II, Ni^II, Cu^II, zn^II, Cd^II and Hg^II with one tetradentate and  octadentate ligand having

\(\stackrel\frown{ON}\)-\(\subset\) \(\begin{matrix} O \\ O \end{matrix}\)and \(\begin{matrix} O \\ O \end{matrix}\)\(\supset\)- \(\stackrel\frown{NO}\)- \(\stackrel\frown{ON}\)-\(\subset\)\(\begin{matrix} O \\ O \end{matrix}\) donor atoms have been synthesized and by elemental analysis, conductance, magnetic susceptibility, IR, electronic, NMR spectra and X-ray diffraction studies. The Co^II and Ni^II completes are octahedral, Cu^II complexes are distorted octahedral and a tetrahedral geometry has been assigned to zn^II, Cd^II and Hg^II complexes.