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New Complexes with a Sterically Hindered Thiourea: Syntheses and Crystal Structures of [Co(dchtu) 2 Cl 2 ], [Zn(dchtu) 2 (NCS) 2 ] and [Pb(dchtu) 6 ](SCN) 2 ·2C 2 H 5 OH (dchtu = N,N′ ‐dicyclohexylthiourea)
Author(s) -
Jia DingXian,
Zhu, AiMei,
Deng Jie,
Zhang Yong
Publication year - 2007
Publication title -
zeitschrift für anorganische und allgemeine chemie
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.354
H-Index - 66
eISSN - 1521-3749
pISSN - 0044-2313
DOI - 10.1002/zaac.200700137
Subject(s) - chemistry , steric effects , thiourea , crystallography , crystal structure , ligand (biochemistry) , octahedron , coordination sphere , intermolecular force , single crystal , ion , isothiocyanate , chloride , coordination complex , inorganic chemistry , stereochemistry , molecule , metal , organic chemistry , biochemistry , receptor
New complexes of a sterically hindered thiourea, [M(dchtu) 2 Cl 2 ] (M = Co 1 , Ni 2 ), [Zn(dchtu) 2 (NCS) 2 ] ( 3 ) and [Pb(dchtu) 6 ](SCN) 2 ·2C 2 H 5 OH ( 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 X‐ray diffraction analyses. Co II , Ni II , and Zn II form 1: 2 compounds with dchtu even if molar excesses of dchtu is used, while Pb II forms 1:6 compound under the same conditions. The dchtu acts as a monodenate S‐donor ligand in all the complexes. Co II and Zn II atoms are tetrahedrally coordinated with two dchtu ligands, and two chloride or isothiocyanate ions, respectively. The Pb II 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.