Growth and characterisation of new non linear optical material α-glycine sulpho-nitrate (GLSN) with stable dielectric and light dependent properties

Supramolecular Assembly and Ab Initio Quantum Chemical Calculations of 2-Hydroxyethylammonium Salts of para-Substituted Benzoic Acids

“…The forbidden energy gap was estimated from the values of λ max using the relation E g = 1.243 × 10 3 /λ max . 27 There are no absorption bands in the entire visible region; hence these The synthesized salts are IR active species, and their absorption bands occur in different regions. The technique used in the present work brings about plenty of additional information on hydrogen-bonded complexes.…”

“…The UV–Vis spectral studies indicate the cut off wavelength lying between 225.6 and 249 nm for 1 – 3 ; 5 – 7 and 280.3 nm for 4 , corresponding to the energy gap of 5.5–5 eV for 1 – 3 ; 5 – 7 and 4.4 eV for 4 , which are typical values of insulating materials. The forbidden energy gap was estimated from the values of λ max using the relation E g = 1.243 × 10 3 /λ max . There are no absorption bands in the entire visible region; hence these compounds are potential candidates for nonlinear optical applications.…”

Effect of glycine addition on the structural, thermal, optical, mechanical and electrical properties of Sr (HCOO)2·2H2O crystals

“…The development of photonic and optoelectronic technology heavily depends on new semi-organic NLO materials due to their high optical nonlinearity, thermal stability, chemical flexibility of ions and excellent optical transmittance in the UV-visible regions [4][5][6][7][8][9][10]. In particular, crystals of alkaline and alkaline earth formates exhibit marked NLO properties and are used for efficient frequency doubling of Nd:YAG laser and for the phase matched SHG for ruby laser [11].…”

Comments on the papers recently published by M.M. Khandpekar and S.P. Pati

“…In Table 1 do not correspond to these data [3], which does not allow to judge the composition of obtained crystal. One may suppose that this is an alpha-form of the obtained crystal.…”

“…Nevertheless, some papers by Khandpekar and Pati [2][3][4][5] have been published, reporting new compounds without presenting crystal structures. In our opinion, these papers are questionable in some aspects.…”