Spectral studies of coordination compounds of cobalt(II) with thiosemicarbazone of heterocyclic ketone.
The paper presents the spectral analysis of cobalt(II) complexes with indoxyl thiosemicarbazone (ITSC) of general composition [CoL2X2] (where L=ITSC, X=Cl-, NO3-, (1/2)SO4(2-), NCS-). The geometry of the complexes have been characterized by elemental analysis, molar conductance, magnetic susceptibility measurements and spectral (electronic, IR, EPR, 1H NMR, mass) studies. The various physico-chemical techniques suggested a coordination number of six (octahedral) for chloro, nitrato and thiocyanato complexes. Whereas sulfato complex was found to have five coordinate trigonal-bipyramidal geometry. All the complexes are of high spin type showing magnetic moment corresponding to three unpaired electrons.
Chandra
Sulekh
S
Department of Chemistry, Zakir Husain College, University of Delhi, J.L. Nehru Marg, New Delhi 110002, India.
Kumar
Umendra
U
D003035:Cobalt / Q000737:chemistry*; D004578:Electron Spin Resonance Spectroscopy; D004583:Electrons; D007659:Ketones / Q000737:chemistry*; D009682:Magnetic Resonance Spectroscopy; D008280:Magnetics; D013055:Spectrophotometry, Infrared; D013882:Thiosemicarbazones / Q000138:chemical synthesis / Q000737:chemistry*
D007659:Ketones; D013882:Thiosemicarbazones; D003035:Cobalt