UV laser induced photolysis of glycolic acid isolated in argon matrices

Conformational-Dependent Photodissociation of Glycolic Acid in an Argon Matrix

“…The main photoproducts were the molecular complexes H 2 O-CO, HCHO-H 2 O, HCHO-CO 2 , and HCHO-CO. There was no qualitative difference between the photolysis at 212 nm and 226 nm, in agreement with a precedent study [9].…”

“…The main photoproducts were the molecular complexes H2O-CO, HCHO-H2O, HCHO-CO2, and HCHO-CO. There was no qualitative difference between the photolysis at 212 nm and 226 nm, in agreement with a precedent study [9]. In the present study, we extended the wavelength range used in the photolysis to 230 nm to study the photo-induced kinetics in more detail.…”

“…The relative populations of the SSC, GAC, and AAT conformers at room temperature, obtained from a previous computational study, are 94.8, 3.7, and 1.3%, respectively [8]. The photolysis of GA in an argon matrix at 212 and 226 nm yielded similar results, in agreement with a recent report [9]. Figure 2 shows the main changes in the IR spectra of GA upon UV irradiation of the sample at 212 nm.…”

“…The ultraviolet excitation led to the photoisomerization and photodissociation of GA. The main dissociation channels produced molecular complexes of formaldehyde and water with carbon monoxide [9]. Previous photochemical studies show that the conformational photo-isomerization of GA can be initiated by both vibrational excitations on the electronic ground state and electronic excitations, while only the latter also leads to photodissociation.…”

“…The ultraviolet excitation led to the photo-isomerization and photodissociation of GA. The main dissociation channels produced molecular complexes of formaldehyde and water with carbon monoxide [9].…”