(8). Structural analysis revealed that ligand L has three kinds of conformations in these structures. As benefited by the flexible feature of L, the silver chains in 1–8 are different and are depended on the shape and the size of counter anions. Anion exchange studies showed that crystals of 4, 6 and 8 had anion exchange properties, and the channel size in the corresponding solid state structures played
摘要合成了八种
银(I)配位聚合物,并对其结构进行了表征。各种Ag(I)原料与带正电且灵活的
配体1,3-二(2-
吡啶甲基)
咪唑鎓(L)在不同的盐(包括L-Cl,L-
ClO4和L-PF6)中直接反应,得到化合物[AgL(
NO3)2](1),[AgL(CH3CN)](
BF4)2(2),[Ag2
L2( )2]( )Cl(3),[AgL(CH3CN)](PF6) 2·0.5CH3CN(4),[AgL( )](PF6)(5),[AgL]( )(PF6)(6),[AgL(CH3CN)2]( )(PF6)·CH3CN( 7)和[AgL]( )2·CH3CN(8)。结构分析表明,
配体L在这些结构中具有三种构象。得益于L的灵活功能,1–8中的
银链有所不同,并取决于抗衡阴离子的形状和大小。阴离子交换研究表明,4、6和8的晶体具有阴离子交换特性,通道尺寸在相应的固态结构中起着至关重要的