hindrance for the pendant –Me group leads to the formation of a parallel stacked network. Therefore, compounds 1 and 2 feature 3D structures with inclined polycatenation (2D + 2D → 3D); compound 3 exhibits a non-interpenetrated 2D + 2D → 2D parallel stacked network. These complexes have been characterized by single crystal X-ray diffraction, infrared spectroscopy, thermogravimetry, elemental analysis
基于三个具有不同侧链的线性
吡啶配体和一个柔性V型二
羧酸酯共
配体,合成了三种新的配位聚合物:[Co(L1)0.5(sdb)]} n(1),[Co(
L2)0.5(sdb)]·1.5H 2 O} n(2)和[Co(L3)0.5(sdb)]·2
DMF} n(3)(L1 = E,E -2,5-二辛氧基-1, 4-双-[2-
吡啶-
乙烯基]-苯;
L2 = E,E-2,5-二丁氧基-1,4-双-[2-
吡啶-
乙烯基]-苯; L 3=E,E -2,5-二甲氧基-1,4-双-[2-
吡啶-
乙烯基]-苯;H 2 sdb = 4,4'-磺酰基二
苯甲酸)。复杂体1-3是4连接的sql网络,其点符号为4 4 ·6 2 }。骨架的互穿形式和孔隙率已通过侧链延长得到很好的控制。吊坠–O n Oct和–O n的较大空间位阻但是,基团会导致各层之间的排斥力更大,并且有效构造了倾斜的多聚类别。吊坠-Me组的较小空间位阻导