Single crystals of a new nonlinear optical material, bisthiourea-urea have been grown from aqueous solution by slow evaporation technique with a period of 4 weeks. The structure of the grown crystals was confirmed by X-ray diffraction (XRD). The presence of title compound in the crystal lattice has been qualitatively determined by FTIR analysis. The mechanical properties and thermal stability of the grown crystals were evaluated by Vickers microhardness test and TG and DTG, respectively.
1. Justinraj, SC. Growth and characterization of novel ferroelectric urea-succinic acid single crystals. J Cryst Growth. 2008;310:3313–3317. .
2. Angeli Mary, PA, Dhanuskodi, S. Growth and characterization of a new nonlinear optical crystal:Bis thiourea zinc chloride. Cryst Res Technol. 2001;36:1231–1237. .
3. Jayalakshmi, D, Kumar, J. Growth and characterization of bis thiourea zinc acetate. Cryst Res Technol. 2006;41:37–40. .
4. Ezhilvizhi, R, Kalainathan, S, Bhagavannarayana, G. Structural and microhardness studies of pure and thiourea doped phosphate single crystal. Cryst Res Technol. 2008;43:778–782. .
5. Rajesekaran, R, Rajendiran, KV. Investigation on the nucleation kinetics of zinc thiourea chloride single crystals. Mater Phys Chem. 2003;82:273–280. .
6. Boomadevi, S, Dhanasekaran, R, Ramasamy, P. Investigation on nucleation kinetics of urea crystals from methanol. Cryst Res Technol. 2002;37:159–168. .
7. Meenakshisundaram, S, Parthiban, S, Sarathi, N, Kalavathy, R, Bhagavannarayana, G. Effect of organic dopants on ZTS single crystals. J Cryst Growth. 2006;293:376–381. .
8. Ushasree, PM, Jayavel, R, Ramasamy, P. Growth and characterization of phosphate mixed ZTS single crystals. Mater Sci Engg B. 1999;65:153–158. .
9. Hall, SR, Kolinsky, PV, Jones, R, Allen, S, Gordon, P, Bothwell, B, Bloor, D, Norman, PA, Hursthouse, M, Karaulov, A, Baldwin, J, Goodyear, M, Bishop, D. Polymorphism and nonlinear optical activity in organic crystals. J Cryst Growth. 1986;79:745–751. .
10. Gupte, SS, Desai, CF. Vickers hardness anisotropy and slip system in zinc(tris)thioureasulphate crystals. Cryst Res Technol. 1999;34:1329–1332. .
11. Venkataramanan, V, Dhanaraj, G, Wadhawan, WK, Sherwood, JN, Bhat, HL. Crystal growth and defects characterization of zinc tris(thiourea)sulfate: a novel metal organic nonlinear optical crystal. J Cryst Growth. 1995;154:92–97. .
12. Ushasree, PM, Muralidharan, R, Jayavel, R, Ramasamy, P. Metastable zone width, induction period and interfacial energy of zinc tris(thiourea)sulfate. J Cryst Growth. 2000;210:741–745. .
13. George, AR, Harris, KDM. Computational investigation of surface structural relaxation in crystalline urea. J Mater Chem. 1995;5:133–140. .
14. Shannon, JJ, Haris, KDM. Phase transitions involving re-ordering of the guest molecules in solid organic compound: heptonic anhydride/urea. J Chem Soc. 1996;92:267–272.
15. Madhurambal, G, Mojumdar, SC, Hariharan, S, Ramasamy, P. TG, DTC, FT–IR and Raman spectral analysis of Zna/Mgb ammonium sulfate mixed crystals. J Therm Anal Calorim. 2004;78:125–133. .
16. Udayalakshmi, K, Ramamurthi, K. Optical, mechanical and thermal properties of p-bromoacetanilide. Cryst Res Technol. 2006;41:795–799. .
17. Verma, S, Singh, MK, Wadhavan, VK, Suresh, CH. 2000 Growth morphology of zinctris(thiourea)sulphate crystals. J Phys. 54:879–888.
18. Arunmozhi, G, de Gomes, EM, Ganesamoorthy, S. Growth kinetics of zinc(tris)thioureasulphate (ZTS) crystals. Cryst Res Technol. 2004;39:408–413. .
19. Czakis-Sulikowska, D, Czylkowska, A, Malinowska, A. Thermal and other properties of new 4, 4′-bipyridinetrichloroacetato complexes of Mn(II), Ni(II) and Zn(II). J Therm Anal Calorim. 2002;67:667–678. .
20. More, A, Verenkar, VMS, Mojumdar, SC. Nickel ferrite nanoparticles synthesis from novel fumarato-hydrazinate precursor. J Therm Anal Calorim. 2008;94:63–67. .
21. Mojumdar, SC, Raki, L. Preparation, thermal, spectral and microscopic studies of calcium silicate hydrate-poly(acrylic acid) nanocomposite materials. J Therm Anal Calorim. 2006;85:99–105. .
22. Sawant, SY, Verenkar, VMS, Mojumdar, SC. Preparation, thermal, XRD, chemical and FT–IR spectral analysis of NiMn2O4 nanoparticles and respective precursor. J Therm Anal Calorim. 2007;90:669–672. .
23. Porob, RA, Khan, SZ, Mojumdar, SC, Verenkar, VMS. Synthesis, TG, SDC and infrared spectral study of NiMn2(C4H4O4)3·6N2H4–A precursor for NiMn2O4 nanoparticles. J Therm Anal Calorim. 2006;86:605–608. .
24. Mojumdar, SC, Varshney, KG, Agrawal, A. Hybrid fibrous ion exchange materials: past, present and future. Res J Chem Environ. 2006;10:89–103.
25. Doval, M, Palou, M, Mojumdar, SC. Hydration behaviour of C2S and C2AS nanomaterials, synthesized by sol-gel method. J Therm Anal Calorim. 2006;86:595–599. .
26. Varshney, KG, Agrawal, A, Mojumdar, SC. Pyridine based thorium(IV) phosphate hybrid fibrous ion exchanger: synthesis, characterization and thermal behaviour. J Therm Anal Calorim. 2007;90:721–724. .
27. Madhurambal, G, Ramasamy, P, Anbusrinivasan, P, Mojumdar, SC. Thermal properties, induction period, interfacial energy and nucleation parameters of solution grown benzophenone. J Therm Anal Calorim. 2007;90:673–679. .
28. Varshney, G, Agrawal, A, Mojumdar, SC. Pyridine based cerium(IV) phosphate hybrid fibrous ion exchanger: synthesis, characterization and thermal behaviour. J Therm Anal Calorim. 2007;90:731–734. .
29. Mojumdar, SC, Melnik, M, Jona, E. Thermal and spectral properties of Mg(II) and Cu(II) complexes with heterocyclic N-donor ligands. J Anal Appl Pyrolysis. 2000;53:149–160. .
30. Borah, B, Wood, JL. Complex hydrogen bonded cations. The benzimidazole benzimidazolium cation. Canad J Chem. 1976;50:2470–2481. .
31. Mojumdar, SC, Sain, M, Prasad, RC, Sun, L, Venart, JES. Selected thermoanalytical methods and their applications from medicine to construction. J Therm Anal Calorim. 2007;60:653–662. .
32. Parthiban, S, Murali, S, Madhurambal, G, Meenakshisundaram, SP, Mojumdar, SC. Effect of zinc(II) doping on thermal and optical properties of potassium hydrogen phthalate (KHP) crystals. J Therm Anal Calorim. 2010;100:751–756. .