利用二次球形配位构筑亲水型隧道框架结构

质子化N,N,N’,N’-四苄基乙二胺可与Fe(CN)6]3－, SnCl6]2－和TeCl6]2－二次球形配位分别形成可容纳客体分子的包结物晶体(1～3). 晶体1通过NH＋…NC－, NH＋…p(NC)和CH…p(NC)组合合成子, 构筑了亲水性层柱隧道结构, 孔径尺寸为1.03 nm×1.12 nm, 两个乙醇分子和两个水分子填充于隧道中; 晶体2通过CH…Cl－合成子, 构筑了亲水性层间隧道结构, 孔径尺寸为0.94 nm×0.73 nm, 三个水分子和两个氯离子填充于隧道中; 晶体3的结构与晶体2相似, 也是通过CH…Cl－合成子, 构筑了层间亲水性隧道结构, 孔径尺寸为0.94 nm×0.72 nm, 两个水分子填充于隧道中.

Hydrophilic Channel Framework Constructed by Second-sphere Coordination

Protonated N,N,N′,N′-tetrabenzyl-ethylenediamine can form inclusion crystals (1～3) with Fe(CN)6]3－, SnCl6]2－ and TeCl6]2－ by second-sphere coordination, respectively. The crystal 1, through the combination of synthons of NH＋…NC－, NH＋…p(NC) and CH…p(NC), constructing a hydrophilic pillared layer channel with channel size of 1.03 nm×1.12 nm, which can accommodate two alcohol molecules and two water molecules; the crystal 2 is endowed with hydrophilic channels between layers through C—H…Cl－ synthons, with channel size of 0.94 nm×0.73 nm, in which three water molecules and two Cl－ anions are packed; the structure of crystal 3 is similar to that of crystal 2, a hydrophilic channel between layer structures is constructed by C—H…Cl－ synthons, with channel size of 0.94 nm×0.72 nm, and two water molecules are filled within the channel between layers.