New bifunctional N-thiophosphorylated thiourea and 2,5-dithiobiurea derivatives. Crystal structures of R[C(S)NHP(S)(OiPr)2]2 (R = -N(Ph)CH2CH2N(Ph)- and -NHNH-)

Abstract

A new bifunctional N-thiophosphorylated thiourea and 2,5-dithiobiurea of the common formula R[C(S)NHP(S)(OiPr)2]2 [R = -N(Ph)CH2CH2N(Ph)- (H2La); -NHNH- (H2Lb)] have been synthesized and characterized by IR, 1H, 31P spectroscopy and the single crystal X-ray diffraction method. The structure of the latter compound in CDCl3 and acetone-d6 solutions has been discussed in comparison with the monofunctional thiosemicarbazide PhNHNHC(S)NHP(S)(OiPr)2 (HLc). © 2008 Elsevier Ltd. All rights reserved.