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Structural and spectroscopic analysis of dipeptidel-methionyl-glycine and its hydrochloride

✍ Scribed by B. B. Koleva; T. M. Kolev; S. Todorov

Book ID
111491092
Publisher
Versita
Year
2007
Tongue
English
Weight
443 KB
Volume
61
Category
Article
ISSN
0366-6352

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✦ Synopsis

Abstract

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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