Spectroscopic and structural elucidation of L-tyrosine-containing dipeptides valyl-tyrosine and tyrosyl-alanine: solid-state IR-LD spectroscopy, quantum chemical calculations and vibrational analysis |
| |
| Authors: | Koleva Bojidarka B Kolev Tsonko M Spiteller Michael |
| |
| Institution: | Sofia University, St Kl Ohridsky, Faculty of Chemistry, Department of Analytical Chemistry, 1164, Sofia, Bulgaria. BKoleva@chem.uni-sofia.bg |
| |
| Abstract: | L-Tyrosine-containing dipeptides valyl-tyrosine (H-Val-Tyr-OH) and tyrosyl-alanine (H-Tyr-Ala-OH) are characterized structurally by means of quantum chemical ab initio calculations and solid-state linear-dichroic infrared (IR-LD) spectroscopy. The IR-characteristic bands are assigned by application of reducing-difference procedure for polarized IR-spectra interpretation. Infrared data obtained are supported as well by the made vibrational analysis. The structures of both peptides are predicted on the basis of conformational analysis and structural information, obtained by the shown IR-spectroscopic tool. |
| |
| Keywords: | H-Val-Tyr-OH H-Tyr-Ala-OH IR-LD analysis 1H and 13C NMR Ab initio calculations |
| 本文献已被 ScienceDirect PubMed 等数据库收录！ |
