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Advances in Condensed Matter Physics
Volume 2014, Article ID 834760, 5 pages
Research Article

Investigation on Growth, Structural, Spectral, Optical, and Mechanical Properties of an Organic Nonlinear Optical Material: Morpholinium Hydrogen Tartrate

1Department of Physics, SriGuru Institute of Technology, Coimbatore,Tamilnadu 641 110, India
2Department of Physics, Sri Ramakrishna Engineering College, Coimbatore,Tamilnadu 641 020, India

Received 29 September 2013; Revised 18 November 2013; Accepted 22 November 2013; Published 5 January 2014

Academic Editor: Mohindar S. Seehra

Copyright © 2014 R. Renugadevi and R. Kesavasamy. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


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 using 1H and 13C 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.