Reinvestigation of growth of urea thiosemicarbazone monohydrate crystal

Srinivasan, B.R.; Raghavaiah, P.; Nadkarni, V.S.

dc.contributor.author	Srinivasan, B.R.
dc.contributor.author	Raghavaiah, P.
dc.contributor.author	Nadkarni, V.S.
dc.date.accessioned	2015-06-04T03:47:22Z
dc.date.available	2015-06-04T03:47:22Z
dc.date.issued	2013
dc.identifier.citation	Spectrochimica Acta Part A-Molecular and Biomolecular Spectroscopy. 112; 2013; 84-89.	en_US
dc.identifier.uri	http://dx.doi.org/10.1016/j.saa.2013.04.026
dc.identifier.uri	http://irgu.unigoa.ac.in/drs/handle/unigoa/2889
dc.description.abstract	The reaction of urea with thiosemicarbazide in 1:1 mole ratio in aqueous solution does not result in the formation of urea thiosemicarbazone monohydrate crystal, as reported by Hanumantharao, Kalainathan and Bhagavannarayana [Spectrochim. Acta A91 (2012) 345-351]. A reinvestigation of the reported reaction reveals that the crystal obtained is the starting material namely thiosemicarbazide, which has been unambiguously confirmed with the aid of infrared and 1H NMR spectra and single crystal X-ray structure determination. Analysis of 1H NMR spectrum reveals that thiosemicarbazide exhibits thione-thiol tautomerism in solution. In contrast, thiosemicarbazide exists as the thione tautomer in the solid state.	en_US
dc.publisher	Elsevier	en_US
dc.subject	Chemistry	en_US
dc.title	Reinvestigation of growth of urea thiosemicarbazone monohydrate crystal	en_US
dc.type	Journal article	en_US
dc.identifier.impf	y