Interaction of zinc and cadmium Bis(benzothiazole-2-thiolates) with nitrogen bases
摘要:
The reactions of polymeric [Zn(C7H4NS2)2] and [Cd(C7H4NS2)2] with pyridine (py), 2,2'-bipyridine (bipy) and 1,10-phenanthroline (phen) lead to the formation of mononuclear adducts which have been characterized by elemental analysis and infrared spectroscopy. The complexes [Zn(C7H4NS2)2(py)2] 1, [Zn(C7H4NS2)2(bipy)] 2 and [Cd(C7H4NS2)2(py)2] 3 were structurally characterized by X-ray crystallography. Adducts 1 and 2 have distorted-tetrahedral ZnN2S2 Cores. The zinc ions are co-ordinated to the two exocyclic S atoms of the benzothiazole-2-thiolates and to two nitrogen atoms from the py or bipy base. The Zn-S and Zn-N bond distances are 2.324(l) and 2.063(4) angstrom in 1 and 2.310(13) and 2.096(4) angstrom in 2. The complex [Zn(C7H4NS2)2(phen)] was found to be isomorphous to 2. Adduct 3 shows a distorted-octahedral CdN4S2 unit formed by two bidentate S,N benzothiazole-2-thiolates and two cis pyridine nitrogen atoms. The two exocyclic S atoms are located at the axial positions. The mean Cd-S and Cd-N bonds of the bidentate ligands in 3 are 2.706(10) and 2.422(30) angstrom and the corresponding mean Cd-N (py) is 2.334(4) angstrom. The infrared spectra of the adducts in the range 650-200 cm-1 are discussed in the light of the known structures. The thermal degradation of complexes 1-3 affords ZnS or CdS.
Complexes of heterocyclic thiones and group 12 metals: Part VI. Preparation and characterisation of complexes of cadmium(II) halides with 1-methylimidazoline-2(3H)-thione, 1,3-thiazolidine-2-thione and 1,3-benzothiazoline-2-thione. Crystal structures of polymeric (1,3-thiazolidine-2-thione)cadmium(II) chloride, bis(1,3-thiazolidine-2-thione)cadmium(II) iodide and monomeric bis(1-methylimidazoline-2(3H)-thione)cadmium(II) bromide
作者:Norman A Bell、William Clegg、Simon J Coles、Christopher P Constable、Ross W Harrington、Michael B Hursthouse、Mark E Light、Eric S Raper、Chris Sammon、Martin R Walker
DOI:10.1016/j.ica.2003.10.036
日期:2004.5
Reactions of 1-methylimidazoline-2(3H)-thione (meimz2SH), 1,3-thiazolidine-2-thione (tzdSH) and 1,3-benzothiazoline-2-thione (bztzSH) with cadmium(II) halides in ethanol solutions result in the formation of 1:1 complexes for the chloride, both 1:1 and 2:1 complexes for the bromide, and only 2:1 complexes for the iodide. Spectroscopic evidence confirms the exocyclic sulfur atom to be the donor in all
Electrochemical synthesis of benzothiazole-2-thionato complexes of nickel(II), Zinc(II) and cadmium(II): the crystal structure of 2,2′-bipyridine bis(benzothiazole-2-thionato)zinc(II)
作者:Rosa Castro、Jose A. Garcia-Vazquez、Jaime Romero、Antonio Sousa、Charles A. McAuliffe、Robin Pritchard
DOI:10.1016/s0277-5387(00)88263-7
日期:1993.9
metal (nickel, zinc or cadmium) in acetonitrile solutions of benzothiazole-2-thione (Hbztz) gave the compounds [M(bztz) 2 ] [M = nickel(II), zinc(II) and cadmium(II)]. When the oxidations were repeated in the presence of neutral ligands L′ (2,2′-bipyridine or 1,10-phenanthroline) the complexes [M(bztz) 2 L′] were obtained. The crystalstructure of 2,2′-bipyridinebis(benzothiazole-2-thionato)zinc(II)
在苯并噻唑-2-硫酮(Hbztz)的乙腈溶液中对阳极金属(镍,锌或镉)进行电化学氧化,得到化合物[M(bztz)2] [M =镍(II),锌(II)和镉( II)]。当在中性配体L'(2,2'-联吡啶或1,10-菲咯啉)的存在下重复氧化时,获得了配合物[M(bztz)2 L']。通过X射线衍射确定2,2′-联吡啶双(苯并噻唑-2-硫代)锌(II)的晶体结构。该化合物由单体分子组成,其中中心ZnS 2 N 2单元具有稍微扭曲的四面体环境。讨论了配合物的电子,IR和1 H和13 C NMR光谱,并与它们的结构有关。
Highly efficient and stable photocatalytic properties of CdS/FeS nanocomposites