Spectral studies on Ag8+ ions irradiated LAHCl·H2O and LAHBr·H2O single crystals

l-Arginine hydrochloride monohydrate and l-arginine hydrobromide monohydrate single crystals are irradiated by 100 MeV Ag8+ swift heavy ions. The residual gases liberated from the irradiated samples are monitored as a function of ion fluence using quadrupole mass analyzer. The C2H3+, C2H2, N2, CO, HCl and CO2 are the dominant gases liberated. Fourier transform infrared spectra of irradiated crystals explain the breaking of bonds in a localized region of the crystals. The crystallinity of irradiated crystals is analyzed by powder X-ray diffractions.

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► Residual gases emerging from the 100 MeV Ag8+ ion irradiated LAHCl·H2O and LAHBr·H2O single crystals were monitored.
► In situ quadrupole mass analyzes have been performed during the irradiation.
► The bond breakings and side chain scission processes have been explained.
► The crystallinity before and after irradiation has been explained with powder XRD analyzes.