Chakravorty, A. ; Holm, R. H. (1964) Studies on nickel(II) complexes. VI. the conformational equilibria of bis(o-hydroxynaphthaldimine) complexes Inorganic Chemistry, 3 (7). pp. 1010-1015. ISSN 0020-1669
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Official URL: http://pubs.acs.org/doi/abs/10.1021/ic50017a021
Related URL: http://dx.doi.org/10.1021/ic50017a021
Abstract
The existence of a planar ⥨ tetrahedral structural equilibrium in solutions of three isomeric groups of bis(o-hydroxynaph-thaldiminej—Ni(II) complexes has been established from studies of magnetic susceptibilities, ligand field spectra, and proton magnetic resonance spectra. Like the related salicylaldimine complexes,1 these naphthaldimine complexes manifest isotropic hyperfine contact shifts in their proton resonance spectra. The assignment of these spectra is discussed. The sign of the contact shifts and spin densities are shown to be in agreement with a qualitative valence bond model of spin delocalization. The use of the contact shift effect in obtaining cis spin-spin coupling constants is illustrated for one o-hydroxynaph-thaldimine system.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to American Chemical Society. |
| ID Code: | 95227 |
| Deposited On: | 30 Oct 2012 06:22 |
| Last Modified: | 30 Oct 2012 06:22 |
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