Collect. Czech. Chem. Commun.
1990, 55, 1660-1665
https://doi.org/10.1135/cccc19901660
Powder ESR spectra of the complexes [Cu(phen)2X]ClO4 and [Cu(bipy)2I]ClO4
Marián Valkoa, Milan Mazúra, Peter Pelikána, Ivan Kováčikb, Peter Baranb and Dušan Valigurab
a Department of Physical Chemistry, Slovak Technical University, 812 37 Bratislava
b Department of Inorganic Chemistry, Slovak Technical University, 812 37 Bratislava
Abstract
The ESR spectra of the polycrystalline [Cu(phen)2X]ClO4 and [Cu(bipy)2I]ClO4 complexes (phen 1,10-phenanthroline, bipy 2,2'-bipyridyl, X = Cl, Br, I) were studied. The values of the optimized parameters of the spin Hamiltonian of the experimental ESR spectra indicate that the CuN4X chromophor has the shape of a compressed trigonal bipyramid with the D3h symmetry, and its structure involves the z2> ground electronic state of the unpaired electron of the Cu(II) ion.
