Abstract

The IR-spectroscopic and structural elucidation of tetrapeptide glycyl-L-prolyl-glycyl-glycine and its hydrogensquarate was performed by employing linear-polarized IR-spectroscopy of oriented colloid suspensions in nematic host as well as mass spectrometry. Quantum-chemical ab initio calculations were carried out in order to evaluate both the electronic structure and optical properties of the compound studied.

Keywords: glycyl-L-prolyl-glycyl-glycine, hydrogensquarate, solid-state IR-LD spectroscopy, ab initio calculations, mass spectrometry