Browsing by Author "Hailu Hillette"

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    Derivatized Sulfur Heterocyclics and Metal Complexes-Structural Studies
    (Addis Ababa Universty, 2007-07) Hailu Hillette; Raju V.J.T. (Professor)
    A new ligand 3’,4’-bis(2-iminomethyl phenol)-2,2’:5’,2’’-terthiophene(L), has been synthesized by condensation of 3’,4’-diamino-2,2’:5’,2’’-terthiophene and salicylaldehyde. The Ni(II) and Zn(II) complexes of the ligand were synthesized and characterized on the basis of their spectral (IR, NMR, UV-Vis, AAS, MS), molar conductivity and magnetic susceptibility measurements, and based on this the structures of both the complexes were octahedral. The ligand behaves as neutral ONS-ONS bischelant towards Ni(II) in [Ni2LCl4(H2O)2]. 4H2O and as dibasic ONNO donor towards Zn(II) in [ZnL(NH3)2]. The participation of ring sulfur in bonding towards Ni(II) and the non-participation of the ring towards Zn(II) are notable features. Key words: 3’,4’-bis(2-imino methyl phenol)-2,2’:5’,2’’-terthiophene, 3’,4’-Diamino- 2,2’:5’,2’’-terthiophene, salicylaldehyde, Ni(II) and Zn(II) complexes