Structural variations in copper(I) iodide coordination polymers of sulfide and disulfide containing flexible 3-substituted pyridine ligands
作者:Lyall R. Hanton、Ryan M. Hellyer、Mark D. Spicer
DOI:10.1016/j.ica.2006.01.029
日期:2006.8
The three-substituted dipyridyl ligand bis(3-pyridylmethyl)sulfide ( L 1 ) was prepared by the reaction of 3-(chloromethyl)pyridine hydrochloride with thioacetamide under basic conditions. L 1 was reacted with CuI to give complexes with 1:2 and 1:1 molar ratios. Crystal structures of [(CuI) 2 ( L 1 )] ∞ ( 1 ) and [CuI( L 1 )] ∞ ( 2 ) were determined. In complex 1 the CuI species formed a one-dimensional
通过使3-(氯甲基)吡啶盐酸盐与硫代乙酰胺在碱性条件下反应制备三取代的二吡啶基配体双(3-吡啶基甲基)硫化物(L 1)。使L 1与CuI反应,得到摩尔比为1:2和1:1的配合物。确定了[(CuI)2(L 1)]∞(1)和[CuI(L 1)]∞(2)的晶体结构。在复合物1中,CuI物种形成了一个一维阶梯状聚合物,L 1以并排的方式结合在一起,并且每侧的配体之间都有π–π相互作用。配合物2由金属大环的一维带状聚合物组成,该金属大环由两个L 1配体桥接Cu 2 I 2二聚体形成,该两个L 1配体桥接在大环内。通过氧化相应的硫醇3-(硫烷基甲基)吡啶制备类似的二硫配体双(3-吡啶基甲基)二硫化物(L 2)。使L 2与CuI以1:2和1:1的摩尔比反应,分离出产物,但是仅1:1的产物能够结晶。[CuI(L 2)]∞(3)的晶体结构由一个金属大环的一维带状聚合物组成,该大环由两个通过Cu 2 I 2二聚体连接的L
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