二次配体结构和[CuCl4]2－构型对层间隧道结构的影响研究

设计合成的质子配体, N,N,N’,N’-四(对甲基苄基)乙二胺(SL1)和N,N,N’,N’-四苄基乙二胺(SL2), 是连有大体积取代基团的含N双齿配体, 它可通过二次球形配位, 与第一络合物CuCl4]2－形成层间隧道框架结构. 环戊醇分子和乙醇分子分别被填入由SL1和SL2构筑的隧道中, 形成包结化合物. 晶体结构分析结果表明, 这样的配体易于与指导基团通过NH＋…Cl－氢键作用进行双齿配位并形成1D带和2D层结构; SL1 2D层间的苄基呈平行堆砌, 形成1D亲水性隧道框架, SL2 2D层间的苄基呈交错堆砌, 形成了1D疏水性隧道框架. 实验结果表明, 层间隧道框架结构的孔径及极性与第二配体的分子长度、指导基团的构型以及客体分子的形状大小有关.

Study on the Effects of Structure of Second Ligands and [CuCl_4]~(2-)Configuration on Channel Framework between Layers

The designed and synthesized protonated ligands, N,N,N',N'-tetra-(p-methylbenzyl)ethylenedia-mine (SL1) and N,N,N',N'-tetra-benzylethylenediamine (SL2), are both the N-bidentate ligands with the bulky substituent groups, and can form the channel between layers with the directional group CuCl4]2- through the second-sphere coordination. Molecules of cyclopentyl alcohol and ethyl alcohol are accommo- dated in the channel constructed by SL1 and SL2, respectively, thus forming the inclusion compounds. The analy...