Coordinating properties of some solvents in Cr(CO)5L complexes |
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| Institution: | 1. Department of Chemical Engineering, Hamedan University of Technology, Hamedan, 6516913733, Iran;2. Department of Metallurgy and Materials Engineering, Hamedan University of Technology, Hamedan, 6516913733, Iran;3. Sivas Cumhuriyet University, Faculty of Science, Department of Chemistry, 58140 Sivas – TURKEY |
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| Abstract: | The influence of the donor—acceptor properties of several solvents on the Cr(CO)5 group in the solid Cr(CO)5·solvent] complexes has been examined by spectroscopic methods. Relationships were found between the acceptor number of solvent with the π acceptor ability (Graham π parameter) and with the λmax for the ligand field 1A1 → 1E transition, in the carbonyl chromium complexes. These relations are discussed in terms of the dative metal—ligand π bonding. From these results, it is possible to demonstrate the π contribution in the acceptor number. |
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