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https://dspace.ffh.bg.ac.rs/handle/123456789/576| Title: | Localization of the counterion of the protonated schiff base of n-butylretinal in solution | Authors: | Biliškov, Nikola Novak, Jurica Petković, Milena Zgrablić, Goran Baranović, Goran Došlić, Nada |
Keywords: | Anharmonic frequency;DFT;Hydrogen bonding;Infrared spectroscopy;n-butylretinal;Trifluoroacetic acid | Issue Date: | 1-Oct-2011 | Journal: | Croatica Chemica Acta | Abstract: | The vibrational spectra of the protonated Schiff base of n-butylretinal (nSBR+) in dichloromethane are studied. The trifluoroacetic acid (TFA) is used for the protonation of the Schiff base of nbutylretinal (nSBR). Combining the two-dimensional correlation analysis of the experimental infrared spectra with anharmonic frequency calculations it is shown that two types of ionic aggregates between nSBR+ and the TFA counterion are formed. The study suggests that the interaction between nSBR+ and the TFA counterion may be responsible for the observed lost of photoselectivity in the trans-cis isomerization of the nSBR+ in solution. |
URI: | https://dspace.ffh.bg.ac.rs/handle/123456789/576 | ISSN: | 0011-1643 | DOI: | 10.5562/cca1826 |
| Appears in Collections: | Journal Article |
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