Bisthiourea: thermal and structural investigation
- 146 Downloads
Bisthiourea derivatives 1,1′-(ethane-1,2-diyl)bis(3-phenylthiourea), 1,1′-(propane-1,3-diyl)bis(3-phenylthiourea), and 1,1′-(butane-1,4-diyl)bis(3-phenylthiourea) have been synthesized and characterized by IR, 1H NMR, and 13C NMR. Suitable crystals of 1,1′-(propane-1,3-diyl)bis(3-phenylthiourea) were grown for single-crystal X-ray analysis and from the data it was observed that they organize into the P-1 space group. The thermal decomposition of these compounds has been studied by TG–DSC.
KeywordsBisthiourea derivatives Crystal structure Thermal decomposition
The authors wish to thank Dr. Hong Su from the Chemistry Department of the University of Cape Town and Dr. Manuel Fernandes from the Chemistry Department of the University of the Witwatersrand for their assistance with the X-ray data collection and refinement and the DST—National Research Foundation, Centre of Excellence in Catalysis, c*change, for financial support. PBP would like to thank UKZN for funding his post-doctorate fellowship.
- 4.Abdallah R, Breuzard JAJ, Bonnet MC, Lemaire M. Phosphite and thiourea ligand synergy for rhodium catalyzed enantioselective hydroformylation of styrene. J Mol Catal A. 2006;249(1–2):218–22.Google Scholar
- 5.Karamé I, Lorraine Tommasino M, Lemaire M. N, N- and N, S-ligands for the enantioselective hydrosilylation of acetophenone with iridium catalysts. J Mol Catal A. 2003;196(1–2):137–43.Google Scholar
- 7.Breuzard JAJ, Tommasino ML, Touchard F, Lemaire M, Bonnet MC. Thioureas as new chiral ligands for the asymmetric hydroformylation of styrene with rhodium(I) catalysts. J Mol Catal A. 2000;156(1–2):223–32.Google Scholar
- 18.Bruker. APEX2, SAINT and SAINT + (includes XPREP and SADABS). Bruker AXS Inc., Madison, WI, 2006.Google Scholar
- 19.Sheldrick GM. SHELXL97. Germany: University of Göttingen; 1997.Google Scholar
- 22.Mandelkern L. Crystallization of polymers. New York: Mcgraw-Hill; 1964.Google Scholar