Derivatized Sulfur Heterocyclics And Metal Complexes-structural Studies

A new ligand 3’,4’-bis(2-iminomethyl phenol)-2,2’:5’,2’’-terthiophene(L), has beenrnsynthesized by condensation of 3’,4’-diamino-2,2’:5’,2’’-terthiophene andrnsalicylaldehyde. The Ni(II) and Zn(II) complexes of the ligand were synthesized andrncharacterized on the basis of their spectral (IR, NMR, UV-Vis, AAS, MS), molarrnconductivity and magnetic susceptibility measurements, and based on this the structuresrnof both the complexes were octahedral. The ligand behaves as neutral ONS-ONS bischelantrntowards Ni(II) in [Ni2LCl4(H2O)2]. 4H2O and as dibasic ONNO donor towardsrnZn(II) in [ZnL(NH3)2]. The participation of ring sulfur in bonding towards Ni(II) and thernnon-participation of the ring towards Zn(II) are notable features.rnKey words: 3’,4’-bis(2-imino methyl phenol)-2,2’:5’,2’’-terthiophene, 3’,4’-Diamino-rn2,2’:5’,2’’-terthiophene, salicylaldehyde, Ni(II) and Zn(II) complexes

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