Synthesis of a Macrocyclic Schiff Base Ligand H4 mac1-3 and Their Nickel (II) Complexes
Keywords:
Macrocyclic complexes, Oxalodihydrazide, Nickel (II)Abstract
Macrocyclic complexes of the type [Ni H2 mac1-3] containing a pair of alpha diimine groups were synthesized by metal ion catalysed template condensation of bis- oxalo dihydrazide Ni (II) complexes with biacetyl, benzil or furil. Cyclisation has taken place due to organizational role of metal ions. Characterization of the complexes has been done on the basis of elemental analysis for molecular formula, IR spectra for node of bonding, magnetic moment and electronic spectra for stereochemistry & molar conductivity for electrolytic nature of the complexes. Amidic nitrogens have taken part in coordination. Structure of the complexes has been found to be square planar. Complexes are non- electrolytic in nature.
H4mac1=1,2,5,6,9,10,13,14-octaaza-7,8,15,16-tetraoxo-3,4,11,12-tetramethyl-1,6,9,14-tetrahydro-cyclohexadeca-2,4,10,12-tetraene
H4mac2=1,2,5,6,9,10,13,14-octaaza-7,8,15,16-tetraoxo-3,4,11,12-tetrafuryl-1,6,9,14-tetrahydro-cyclohexadeca-2,4,10,12-tetraene
H4mac3=1,2,5,6,9,10,13,14-octaaza-7,8,15,16-tetraoxo-3,4,11,12-tetraphenyl-1,6,9,14-tetrahydro-cyclohexadeca-2,4,10,12-tetraene
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