TG–DTA, UV and FTIR spectroscopic studies of urea–thiourea mixed crystal
作者： G. Madhurambal , M. Mariappan , S. C. Mojumdar
DOI: 10.1007/S10973-010-0763-3
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摘要: A mixed crystal of urea–thiourea was grown by slow evaporation aqueous solution at room temperature. The bright and transparent crystals obtained were characterized thermogravimetric–differential thermal analysis (TG–DTA), UV FTIR spectroscopic analyses. fitting decomposition pattern for the title compound formulated on TG curve which shows a two stage weight loss between 200 750 °C. In this temperature range DTA exothermic peaks supporting pattern. spectra show characteristic absorption, vibration frequencies due to crystals. Detailed structural is under progress.
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M. Kubranová, E. Jóna, E. Rudinská, K. Nemceková, D. Ondrušová, M. Pajtášová, Thermal properties of Co-, Ni- and Cu-exchanged montmorillonite with 3-hydroxypyridine Journal of Thermal Analysis and Calorimetry. ,vol. 74, pp. 251- 257 ,(2003) , 10.1023/A:1026350424642
Edgardo R. Benavidez, Carlos J. R. González Oliver, Thermal evolution of ceramic powders surrounding the YBa2Cu3O7―x composition Journal of Thermal Analysis and Calorimetry. ,vol. 99, pp. 369- 375 ,(2010) , 10.1007/S10973-009-0004-9
S. C. Mojumdarl, M. Melník, E. Jóna, Thermoanalytical Investigation of Magnesium(II) Complexes with Pyridine as Bio-Active Ligand Journal of Thermal Analysis and Calorimetry. ,vol. 56, pp. 533- 539 ,(1999) , 10.1023/A:1010123117523
S. Boomadevi, R. Dhanasekaran, P. Ramasamy, Investigations on Nucleation and Growth Kinetics of Urea Crystals from Methanol Crystal Research and Technology. ,vol. 37, pp. 159- 168 ,(2002) , 10.1002/1521-4079(200202)37:2/3<159::AID-CRAT159>3.0.CO;2-Y
G. Madhurambal, S. C. Mojumdar, S. Hariharan, P. Ramasamy, TG, DTA, FTIR and Raman spectral analysis of Zna/Mgb ammonium sulfate mixed crystals Journal of Thermal Analysis and Calorimetry. ,vol. 78, pp. 125- 133 ,(2004) , 10.1023/B:JTAN.0000042160.82063.C4
Ashley R. George, Kenneth D. M. Harris, Andrew L. Rohl, David H. Gay, Computational investigation of surface structural relaxation in crystalline urea Journal of Materials Chemistry. ,vol. 5, pp. 133- 139 ,(1995) , 10.1039/JM9950500133
K. G. Varshney, A. Agrawal, S. C. Mojumdar, PECTIN BASED CERIUM (IV) AND THORIUM (IV) PHOSPHATES AS NOVEL HYBRID FIBROUS ION EXCHANGERS Synthesis, characterization and thermal behaviour Journal of Thermal Analysis and Calorimetry. ,vol. 81, pp. 183- 189 ,(2005) , 10.1007/S10973-005-0765-8
S. Krishnan, C. Justin Raj, S. Jerome Das, Growth and characterization of novel ferroelectric urea–succinic acid single crystals Journal of Crystal Growth. ,vol. 310, pp. 3313- 3317 ,(2008) , 10.1016/J.JCRYSGRO.2008.03.039
N.P. Zaitseva, L.N. Rashkovich, S.V. Bogatyreva, Stability of KH2PO4 and K(H,D)2PO4 solutions at fast crystal growth rates Journal of Crystal Growth. ,vol. 148, pp. 276- 282 ,(1995) , 10.1016/0022-0248(94)00606-7
K. Kumar, K. Ramamoorthy, R. Chandramohan, K. Sankaranarayanan, A novel growth method for ZnAl2O4 single crystals Crystal Research and Technology. ,vol. 41, pp. 217- 220 ,(2006) , 10.1002/CRAT.200510562