Synthesis and Structural studies on Co(II) Chelate of a Terthiophene Derivative
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Date
2008-07
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Addis Ababa Universty
Abstract
A hydrated mononuclear complex [Co(H2O)2L].4H2O, where L is N,N’-
bis(salicylidene)-3’,4’-diamino-2,2’:5’,2’’-terthiophene, has been synthesized and
characterized by elemental analysis, molar conductance, magnetic moment and
spectral data (FTIR, AA and UV-Vis spectroscopy). Cobalt(II) ion coordinates with
four donor atoms of the ligand and two water molecules. The ligand behaves as a
dibasic tetradentate ONNO donor by involving oxygen’s of the deprotonated phenol
groups and Nitrogen’s of the imine functions. Electronic spectra and room
temperature effective magnetic moment of the complex reveal a high-spin
octahedral geometry in solid state.
Key words: mononuclear, N, N’-bis (salicylidene)-3’, 4’-diamino-2, 2’:5’, 2’’-terthiophene,
Cobalt(II), dibasic tetradentate, imine, high-spin octahedral geometry
Description
Keywords
Mononuclear, N, N’-bis (salicylidene)-3’, 4’-diamino-2, 2’:5’, 2’’-terthiophene, Cobalt(II), Dibasic tetradentate, Imine, High-spin octahedral geometry