1093103-16-2Relevant academic research and scientific papers
New complexes with a sterically hindered thiourea: Syntheses and crystal structures of [Co(dchtu)2Cl2], [Zn(dchtu) 2(NCS)2] and [Pb(dchtu)6](SCN)2 · 2C2H5OH (dchtu = N,N′-dicyclohexy!thiourea)
Jia, Ding-Xian,Zhu, Ai-Mei,Deng, Jie,Zhang, Yong
, p. 2059 - 2063 (2007)
New complexes of a sterically hindered thiourea, [M(dchtu) 2Cl2] (M = Co 1, Ni 2), [Zn(dchtu)2(NCS) 2] (3) and [Pb(dchtu)6](SCN)2·2C 2H5OH (4) (dchtu = N.N·-dicyclohexylthiourea), have been synthesized and characterized. The single crystal structures of 1, 3 and 4 have been determined by single crystal Xray diffraction analyses. Co II, NiII and Zn form 1: 2 compounds with dchtu even if molar excesses of dchtu is used, while Pb forms 1:6 compound under the same conditions. The dchtu acts as a monodenate S-donor ligand in all the complexes. CoII and ZnII atoms are tetrahedrally coordinated with two dchtu ligands, and two chloride or isothiocyanate ions, respectively. The PbII ion in 4 forms an octahedral coordination sphere with six dchtu ligands. The structures of the complexes are stabilized by a system of intermolecular H-bonding.
