Synthesis and X-ray crystal structures of novel silver (I) complexes of (N-carboxymethyl) dimethylammonioacetate
作者:Ping-Pong Wei、De-Dong Wu、Thomas C.W. Mak
DOI:10.1016/0020-1693(96)05095-5
日期:1996.8
Two novel silver (I) coordination polymers [Ag(L)}n] (1) and [[Ag3(L)2]n][ClO4]n (2) (L=(N-carboxymethyl)dimethyl-amminioacetateanion: Me2N+ (CH2CO2−)2), have been synthesized and characterized by X-ray crystallography. Complex 1 (space group ) possesses a dimeric subunit in which the silver atoms are doubly bridged by a pair of syn-synμ-carboxylato-O,O′ groups. The dimeric subunits are inter-linked
两种新型银(I)配位聚合物[Ag(L)} n ](1)和[[Ag 3(L)2 ] n ] [ ClO 4 ] n(2)(L =(N-羧甲基)二甲基- amminioacetateanion:ME 2 ñ +(CH 2 CO 2 - )2),已经合成和表征通过X射线晶体学。复杂1(空间群)具有二聚亚基,其中银原子被双重通过一对桥接顺-顺μ -carboxylato- ö,O '组。二聚体亚基通过来自相邻二聚体的羧基氧原子通过每个银中心的配位而相互连接以形成三维构架。银(I)原子的配位几何是扭曲的四面体,[Ag 2(羧基-O,O ')2 ]二聚体表现出修饰的D型结构。配合物2(带有的空间群Ima2)包含离散的高氯酸根阴离子和C 2的四(羧基-O,O ')-桥联的三聚亚基对称。三聚体亚基延伸成沿b方向延伸的不寻常的无限之字形(Ag…Ag…Ag…)n链。这样的链通过金属-羧酸盐键交联,产生对应于