Abstract
Organic nonlinear optical crystal morpholinium hydrogen tartrate (MHT), with molecular formula [C8H15NO7], has been grown by slow evaporation solution technique. Single crystal X-ray diffraction study confirms that MHT crystallizes in orthorhombic system with noncentrosymmetric space group P212121. FTIR spectrum was recorded to identify the various functional groups of MHT. The various kinds of protons and carbons of MHT have been identified using1H and13C NMR spectral analyses. The range of optical absorption was ascertained by recording UV-Vis-NIR spectral studies. The TG/DTA studies revealed that the grown crystal is thermally stable up to 159.26°C. The mechanical property of the grown crystal was studied using Vickers microhardness studies. The relative second harmonic generation efficiency of MHT was determined using Kurtz and Perry powder technique; it was observed to be greater than that of KDP crystal.
Highlights
Organic nonlinear optical crystals have been greatly investigated due to their high nonlinearities and rapid response in electrooptic effect compared to inorganic materials
The organic nonlinear optical crystals provide the key functions of frequency conversion, optical switching, telecommunication, colour display, and second harmonic generation
Morpholinium hydrogen tartrate single crystals were synthesized from morpholine (Merck GR grade) and L-tartaric acid
Summary
Organic nonlinear optical crystals have been greatly investigated due to their high nonlinearities and rapid response in electrooptic effect compared to inorganic materials. The organic nonlinear optical crystals provide the key functions of frequency conversion, optical switching, telecommunication, colour display, and second harmonic generation. Within the last few years, much progress has been made in the development of nonlinear optical organic materials for second harmonic generation. The structure and various characterizations of nonlinear optical crystal of morpholinium 4-aminobenzoate have been reported [6]. The crystal complex was formed by the transformation of one proton of the L-tartaric acid to the nitrogen atom of morpholine. Crystal growth, structural, spectral, optical, thermal, and mechanical properties of morpholinium hydrogen tartrate, with molecular formula [C8H15NO7] have been reported
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