E.p.r. spectra and bonding parameters of copper(ii) complexes of 2-methyl-4,6-diacylphenols,of the dibenzoyl analogues and of some of their derivatives |
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Authors: | Bibhutosh Adhikary Sanat Kumar Mandai Kamalaksha Nag |
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Institution: | (1) Department of Inorganic Chemistry, Indian Association for the Cultivation of Science, 700 032 Calcutta, India |
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Abstract: | Summary The e.p.r. spectra of mononuclear copper(II) complexes of 2-methyl-4,6-diacylphenols and dibenzoylphenols, and their condensation products with 1,3-diaminopropane have been examined. The MO coefficients evaluated from e.p.r. spectral parameters indicate that the in-plane- , in-plane- and out-of-plane- bondings are significantly covalent. The e.p.r. spectra of the macrocyclic dicopper(II) complexes derived from 2-methyl-4,6-diacyl(benzoyl)phenols and 1,3-diaminopropane measured at 77 K reveal the presence of mononuclear species of axial symmetry. |
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