Synthesis, structure, growth and physical properties of a novel organic NLO crystal: 1,3-Dimethylurea dimethylammonium picrate
- Department of Chemistry, Sri Ramakrishna Mission Vidyalaya College of Arts and Science, Coimbatore 641 020, Tamilnadu (India)
- Centre for Crystal Growth, SSN College of Engineering, SSN Nagar 603 110, Kalavakkam, Tamilnadu (India)
- Materials Characterization Division, National Physical Laboratory, New Delhi 110012 (India)
- Sophisticated Analytical Instrument Facility, Indian Institute of Technology Madras, Chennai 600 036 (India)
Graphical abstract: 1,3-Dimethylurea dimethylammonium picrate is identified as potential candidate for efficient frequency conversion. Research highlights: {yields} A new organic crystal, 1,3-dimethylurea dimethylammonium picrate, crystal has been grown for the first time and reported. {yields} The structure is reported for the first time in the literature. {yields} The high resolution X-ray diffraction curve (DC) measurements substantiate the good quality of the crystals. {yields} Powder test with Nd:YAG laser radiation shows a high second harmonic generation. {yields} Single shot and multiple shot (50 pulses) surface laser damage thresholds are determined to be 0.42 GW/cm{sup 2} and 0.31 GW/cm{sup 2} at 532 nm laser radiation, respectively. -- Abstract: A novel noncentrosymmetric crystal was prepared from 1,3-dimethylurea dimethylammonium picrate, C{sub 11}H{sub 18}N{sub 6}O{sub 8} (DMUP), which was designed for second harmonic generation. DMUP crystals exist in noncentro symmetric space group Cmc2{sub 1} with unit cell dimensions a = 14.288(4) A, b = 17.023(5) A, c = 6.8268(13) A, {alpha} = {beta} = {gamma} = 90{sup o} and volume = 1660.5(8) A{sup 3}. The crystal structure of DMUP has been determined using single crystal X-ray diffraction studies. The single crystals of DMUP were successfully grown by the slow evaporation method with dimensions 10 mm x 4 mm x 3 mm using dimethylformamide as solvent. The structural perfection of the grown crystals has been analysed by High-resolution X-ray diffraction (HRXRD) rocking curve measurements. Powder test with Neodymium-doped Yttrium aluminum garnet (Nd:YAG) laser radiation shows a high second harmonic generation (SHG). The laser induced surface damage threshold for the grown crystal was measured using Nd:YAG laser.
- OSTI ID:
- 22210020
- Journal Information:
- Materials Research Bulletin, Vol. 46, Issue 3; Other Information: Copyright (c) 2010 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.; Country of input: International Atomic Energy Agency (IAEA); ISSN 0025-5408
- Country of Publication:
- United States
- Language:
- English
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