synthesized and structurally characterized (where DMSO = dimethylsulfoxide, DMA = dimethyl acetylamide). Single crystal X-ray analyses show that the four compounds are all based on 3-connected single metal nodes and 3-connected spacers. Compounds 1 and 2 bear a 2D (6, 3)-net structure, while 3 and 4 have a 2D (4, 8)-net. Compared with 2, 3 and 4, 1 exhibits a relatively high thermal stability which is up to ∼550 °C
摘要一系列刚性的
咪唑/
羧酸盐官能化
配体,X-(5,7-二氧杂
吡咯并[3,4-f]
苯并咪唑-6-基)
苯甲酸(X = 4,H24-DPBB; X = 3,H23-DPBB ; X = 2,H22-DPBB)被设计并用于与Zn2 + / Cd2 + / Cu2 +离子的组装反应。四种化合物,[Zn(4-DPBB)(
H2O)]·
DMSO·0.5MeOH(1),[Cd(3-DPBB)(
DMA)1.8( )0.2](2),[Cu(3-DPBB) (
DMSO)(
DMA)](3)和[Cd(2-DPBB)(
DMA)2](4)已合成并进行了结构表征(其中
DMSO =
二甲基亚砜,
DMA =二甲基乙酰酰胺)。单晶X射线分析表明,这四种化合物均基于3个连接的单个
金属节点和3个连接的间隔基。化合物1和2具有2D(6,3)-net结构,而化合物3和4具有2D(4,8)-net结构。与2、3和4相比,1具有相对较高的