Related Experiment Video
Updated: Jun 5, 2026

Modification and Functionalization of the Guanidine Group by Tailor-made Precursors
Published on: April 27, 2017
3,3'-Bis(4-nitro-phen-yl)-1,1'-(p-phenyl-ene)dithio-urea dimethyl sulfoxide disolvate
Wen-Kui Dong1, Hai-Bo Yan, Lan-Qin Chai
1School of Chemical and Biological Engineering, Lanzhou Jiaotong University, Lanzhou 730070, People's Republic of China.
Abstract:
The asymmetric unit of the title compound, C(22)H(16)N(6)O(6)S(2)·2C(2)H(6)OS, consists of one half-mol-ecule of the centrosymmetric thiourea derivative and one molecule of dimethyl sulfoxide (DMSO). The carbonyl group forms an intra-molecular hydrogen bond with the NH group, creating a six-membered (C-N-C-N-H⋯O) ring. Two other N-H⋯O hydro-gen bonds link one mol-ecule of the thio-urea to two mol-ecules of DMSO.
Related Concept Videos
Preparation and Reactions of Sulfides
Preparation and Reactions of Thiols
Diazonium Group Substitution: –OH and –H
1° Amines to Diazonium or Aryldiazonium Salts: Diazotization with NaNO2 Mechanism
Hydrolysis of Chlorobenzene to Phenol: Dow Process

