Abstract

B. Tiwari¹, K. M. Ishwar² and Navin Kumar¹

Macrocyclic complexes of co(III) of the type, CoCy1-2B’X where Cy1 represents themacrocyclic ligand 1,8-dichloro-2,7,9,14-tetraoxa-1,1,8,8-tetraisopropoxy- 4,5,11,12-tetramethyl-1,3,6,10,13-tetraaza, cyclotetradeca-3,5,10,12- tetrene[boimacylene(14)] and cy2-represents the macrocyclic ligand 1,8-dibora- 2,7,9,14-tetraoxa -1,1,8,8-tetraisopropoxy 4,5,11,12-tetraphenyl-1,3,6,10,13-Tetraazacyclotetradeca-3,5,10,12-tetrene [boiphacyclene(14) ]; X represents Halide ions and B’represents nitrogen- donor bases such as pyridine or 3-or 4- methyl pyridines, have been prepared 1-2 and characterized on the basis of elemental analysis, spectral studies and electrochemical studies. All the complexes are found to posses octahedral symmetry around the Co(III)ion.

Macrocyclic ligand; boimacyclene; boiphacyclene; polarography

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