Journal of Thermal Analysis and Calorimetry
Volume/Issue:
Volume 96: Issue 1
Influence of organic solvent on tristhioureazinc(II)sulphate crystals
Authors:
S. Meenakshisundaram Annamalai University Department of Chemistry Annamalainagar 608 002 India

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S. Parthiban Annamalai University Department of Chemistry Annamalainagar 608 002 India

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G. Bhagavannarayana National Physical Laboratory Materials Characterization Division Dr. K. S. Krishnan Road New Delhi 110 012 India

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G. Madhurambal ADM College for Women Department of Chemistry Nagapattinam India

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S. Mojumdar

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Pages:
125–129
Online Publication Date:
12 Mar 2009
Publication Date:
01 Apr 2009
Article Category:
Research Article
DOI:
https://doi.org/10.1007/s10973-008-9884-3
Keywords:
characterization; growth from solutions; high resolution X-ray diffraction; nonlinear optical properties; zinc compounds
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Abstract  

It was observed that the addition of a very small quantity (5·10−3 M L−1) of an organic solvent, benzene (C6H6) in the aqueous growth medium (pH ∼5.9) of tristhioureazinc(II)sulphate (ZTS) markedly influences the SHG efficiency. The measurements using Nd:YAG laser source reveal that second harmonic generation (SHG) conversion efficiency which is one of the most important nonlinear optical (NLO) properties is enhanced by benzene dopant by a factor of nearly 1.5 times. The crystalline perfection of the grown crystals was evaluated by high-resolution X-ray diffractometry (HRXRD). The full width at half maximum (FWHM) of the diffraction curve (which gives an estimate for the degree of crystalline perfection) for undoped and benzene doped specimen crystals are 26 and 15 arc sec, respectively. The reduction in FWHM due to the benzene solvent indicates the significant improvement in crystalline perfection. This very much suggests that the dissolution of trace impurities in the presence of benzene prevents the entry of impurities into the crystal lattice and at the same time enhances the growth promoting effect (GPE). Not much variation is observed in XRD, FTIR and TG-DTA of ZTS in the presence and absence of benzene in the aqueous growth medium.

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Cover Journal of Thermal Analysis and Calorimetry
Journal of Thermal Analysis and Calorimetry
Print ISSN:
1388-6150
Online ISSN:
1572-8943

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Journal of Thermal Analysis and Calorimetry
Language English
Size A4
Year of
Foundation		 1969
Volumes
per Year		 1
Issues
per Year		 24
Founder Akadémiai Kiadó
Founder's
Address		 H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
Publisher Akadémiai Kiadó
Springer Nature Switzerland AG
Publisher's
Address		 H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
CH-6330 Cham, Switzerland Gewerbestrasse 11.
Responsible
Publisher		 Chief Executive Officer, Akadémiai Kiadó
ISSN 1388-6150 (Print)
ISSN 1588-2926 (Online)

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