Splitting of d-orbitals in square planar complexes of copper(II), nickel(II) and cobalt(II)

Magnetic interaction in metal complexes with bridging nitrogen-heterocyclic ligands

Nondestructive immobilization of cobalt and copper Schiff base complexes in silica aero- and xerogels was achieved via the sol−gel method using a precursor N,N‘-ethylenebis(salicylidenaminato) (sal...

Nondestructive Sol−Gel Immobilization of Metal(salen) Catalysts in Silica Aerogels and Xerogels

The electronic structure of cobalt(II) complexes with schiff bases and related ligands

The M(acac)2B and NaM(acac)3 complexes (M = Coll, Nill orZnll; acac=acetylacetonateanion; B=2,2′=bipyridine, 2-aminomethylpyridine or ethylenediamine) have been prepared and their i.r. spectra determined over the 3500-140 cm−1 range. Complete band assignments have been made on a comparative basis, with the effects of ligand substitution and metal ion substitution being considered. Bands in the i.r. spectra of the complexes which are associated with 2,2′-bipyridine, 2-aminomethylpyridine and ethylenediamine arc in excellent agreement with values previously established for these ligand and metal-ligand vibrations, in related complexes. Band assignments for acetylacetonate anion and metal-acetylacetonate vibrations substantiate those made in certain of the previously published papers. The method of assignment adopted has allowed the complete assignment of bands in the i.r. spectra of the metal complexes.

The infrared spectra (3500-140 cm−1) of the 2,2'-bipyridine, 2-aminomethylpyridine and ethylenediamine adducts and the sodium tris-compounds of cobalt(II), nickel(II) and zinc(II) acetylacetonates

F. Morazzoni

Papers

The electronic configuration of some low spin cobalt (II) N2O2 complexes studied by E.S.R. spectroscopy

New adducts of manganese(II)βdiketonate: An example of strong magnetic exchange coupling between the manganese(II) ions