Paramagnetic anisotropy in cobalt( II ) Schiff-base complexes. X-Ray crystal structure and electron spin resonance of NN′-ethylenebis-(acetylacetoneiminato)cobalt( II )-doped NN′-ethylenebis(acetylacetone-iminato)nickel( II )
1976; Royal Society of Chemistry; Issue: 4 Linguagem: Inglês
10.1039/dt9760000342
ISSN2050-5671
AutoresF. Cariati, Franca Morazzoni, C. Busetto, G. Del Piero, Alessandro Zazzetta,
Tópico(s)Metal-Catalyzed Oxygenation Mechanisms
ResumoThe e.s.r. study of a single crystal of NN′-ethylenebis(acetylacetoneiminato) cobalt(II)-doped NN′-ethylenebis-(acetylacetoneiminato) nickel(II), [Co(acacen)] and [Ni(acacen)], is reported; determination of the ground state of the cobalt complex was attempted. [Ni(acacen)] Is isomorphous with [Co(acacen)] as shown by a single-crystal structural determination: the doped crystals are orthorhombic, space group Pna21, Z= 4, a= 12.18(1), b= 10.28(1), and c= 10.37(1). The equatorial principal axes of the g tensor were found to be almost parallel with the cobalt–ligand bond, rather that between these bonds, as expected.
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