Structural and spectroscopic analysis of dipeptide l -methionyl-glycine and its hydrochloride

Koleva, B. B., Kolev, T. M. and Todorov, S. Structural and spectroscopic analysis of dipeptide l -methionyl-glycine and its hydrochloride Chemical Papers, Vol.61, No. 6, 2007, 490-496

Document type: Článok z časopisu / Journal Article
Collection: Chemical papers  

Author(s) Koleva, B. B.
Kolev, T. M.
Todorov, S.
Title Structural and spectroscopic analysis of dipeptide l -methionyl-glycine and its hydrochloride
Journal name Chemical Papers
Publication date 2007
Year available 2007
Volume number 61
Issue number 6
ISSN 0366-6352
Start page 490
End page 496
Place of publication Poland
Publisher Versita
Collection year 2007
Language english
Subject 250000 Chemical Sciences
250400 Analytical Chemistry
Abstract/Summary Dipeptide l-methionyl-glycine (Met-Gly) hydrochloride was characterized structurally by means of solid-state linear polarized IR (IR-LD) spectroscopy of oriented samples as colloidal suspension in nematic liquid crystal. Quantum chemical ab initio calculations and vibrational analysis support the experimental data. 1H and 13C nuclear magnetic resonance (NMR) data, mass spectrometry (ESI-MS and FAB-MS) techniques, thermogravimetry (TGV), and differential scanning calorimetry (DSC) method were employed as well. The experimental and theoretical data of hydrochloride salt were compared with analogous data of the neutral dipeptide with the aim to explain the role of intermolecular hydrogen bonding on the conformational behavior and spectroscopic properties of the compound studied.
 
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