Photolysis of Alcohol: Fluorescence and Photochemistry of the Charge-Transfer Band in Alcoholic Vanadium Trichloride Solution
The primary photochemical processes derived from the charge-transfer excited states of transition metal complexes have been the subject of extensive investigations in the past decade (1). At present, however, our understanding of the photophysical properties of the charge-transfer excited states is relatively limited because of the few luminescence data available.
KeywordsParent Alcohol Luminescence Data Room Temperature Solution Primary Photochemical Process Dichloride Solution
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- 1.(a)V. Balzani and V. Carassiti, “Photochemistry of Coordination Compounds”, Academic Press, New York, N.Y. 1970.Google Scholar
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- 2.The photoreduction of vanadium(III) to vanadium(II) has been recently found in an ehtanolic vanadium trichloride solution: B. V. Korakin, T. S. Dzabiev, and A. E. Shilov, Dokl. Akad. Nauk. SSSR, 229, 128 (1976).Google Scholar
- 4.ν1 15.0 kK (ε 8) and ν2 22.3 kK (ε16) for CH3OH; ν1 150 kK (ε 8) and ν2 22.3 kK (ε 15) for C2H5OH; ν1 14.8 kK (ε 8) and ν2 22.0 kK (ε 16) for n-C3H7OH.Google Scholar
- 5.ν 17.5 kK and v 26.5 kK for CH3OH; v 17.4 kK and v 26.3 kK for C2H5OH; v 16.9 kK (ε 6) and v 25.6 kK (ε 4) for n-C3H7OH. Isobestic points appeared at 525 and 625 nm for the course of the photoreduction.Google Scholar
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- 7.The addition of acetaldehyde to ethanolic vanadium (III) trichloride solution did not affect the emission spectrum. The ethanolic vanadium(II) dichloride solution did not show any emission upon excitation at UV light.Google Scholar
- 8.These excitation bands are not identical with any absorption bands characteristic of aldehydes and alcoholic vanadium (II) dichloride solutions as final photoproducts.Google Scholar