Infrared spectroscopic evidence for Π back-bonding in molecular adducts of pyridine |
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Authors: | S. Milićev |
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Affiliation: | Department of Chemistry, University of Ljubljana, LjubljanaYugoslavia |
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Abstract: | The observation of the dependence of the in-phase, out-of-plane CH bending on π electron density in aromatics made by Kross was applied to pyridine molecular complexes. Comparison of systems with and without possible back bonding and the existence of a series resembling the Irving-Williams' series, assert the π back bonding to be responsible for the behaviour of the pyridine “umbrella” band. |
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