Please use this identifier to cite or link to this item: http://nopr.niscair.res.in/handle/123456789/41772
Title: Macrocyclic metal complexes: Part XX-Studies on nickel(II) macrocyclic complexes with cyclic ligands [Ph4[13]tetraene N4(N2)], [Ph4 [14]tetraene N4(N2)], [MePh4[13)tetraene N4(N2)] and [Ph4bzo[13]pentacne N4(N2)]
Authors: Rout, A K
Sahoo, B
Issue Date: Jan-1991
Publisher: NISCAIR-CSIR, India
Abstract: A series of macrocyclic complexes of nickel(II) has been synthesised by the action of formaldehyde on {bis(benzilmonohydrazone)diimine} nickel(II) complexes. The macrocycles and the precursors have the spin singlet ground state, are square planar in structure and show one ligand field band near 19,000 cm-1. The complexes show one electron reduction in two discrete steps with E values in the ranges - 0.33 to - 0.55 V and - 1.53 V to -1.63 V respectively. The ∆E 1/2 values have been examined thermodynamically for each macrocycle and the precursor, and ∆E values between the macrocyc1e (Cy') and its corresponding precursor (L). The analysis suggests formation of ligand anion radical in the first step and a reduced metal-ligand anion radical complex in the second step.
Page(s): 53-57
URI: http://nopr.niscair.res.in/handle/123456789/41772
ISSN: 0975-0975(Online); 0376-4710(Print)
Appears in Collections:IJC-A Vol.30A(01) [January 1991]

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