EPR study on γ-irradiated single crystals of a non-linear optical material: 3-methoxy-4-hydroxy benzaldehyde

摘要

Single crystals of non-linear optical(NLO) material 3-methoxy-4-hydroxy benzaldehyde(MHBA) were grown following slow evapo- ration method. The grown crystals were characterised by the measurement of unit cell dimensions single crystal X-ray diffraction, density, melting point and X-ray powder diffraction pattern. Hardness study for the grown crystals was carried out. The grown crystals were γ-irradiated to produce free radicals and were analysed by electron paramagnetic resonance (EPR) technique.