Spectroscopic and E. P. R Studies of the Crystal and Molecular Structure of Cu(2-Benzoylpyridine)2(NO3)2.H2O |
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| Authors: | S Hedewy M A Goher S K Hoffmann P B Sczaniecki |
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| Institution: | 1. Faculty of Science Alexandria University , Egypt;2. Institute of Molecular Physics, Polish Academy of Sciences , Poznain |
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| Abstract: | Abstract Solid Cu(2-Benzoylpyridine)2(NO3)2 has been studied by UV-Vis, IR, and EPR (X-band, Q-band) techniques. Monoclinic crystal symmetry was determined with two molecules per unit cell. Copper (II) is coordinated by two benzoylpyridine ligands and a single NO3 group in the chromophore CuN2O3 of distorted trigonal bypiramidal stereochemistry. Exchange coupling values were determined from EPR spectra as |J| = 0.0026(2) cm?1 between magnetically nonequivalent copper (II) sites, and |J| < O.3 cm?1 between equivalent sites. Results are discussed by a comparison with Cu(II)-benzoyl-pyridine complexes coordinated with azide N3 ? anions. |
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| Keywords: | DNA 4‐Butylaminopyrimido[4′ 5′:4 5]selenolo(2 3‐b)quinoline Ellipticine UV spectroscopy CD spectroscopy Binding model Cytotoxicity |
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