摘要
硫杂杯[4]芳烃(H_4TC4A)是由四个硫原子桥连的大环多酚化合物。这一多齿配体容易与金属离子结合形成羽毛球状M_4-TC4A SBUs,再通过其它辅助有机配体连接成孤立的纳米配位笼或多维网络结构[1-2]。作为前期工作的延续,我们选择低对称性的辅助配体5-(吡啶-4-基)间苯二甲酸(PIP),制备了Johson型(J_(17))十四面体配位笼。该化合物以Ni_4-TC4A SBUs作为顶点,PIP为连接体,呈四方双锥反棱柱几何学,相当于一个四方反棱柱在两端各连接一个大小相同的正四角锥而成。该化合物具有较好的C_3H_8/CH_4分离能力[3]。
We report a Johnson-type hexadecahedronal coordination cage,constructed by 10 Ni_4-p-tert-butylthiacalix[4]arene(Ni_4-TC4A) SBUs as the vertices and 16 5-(pyridin-4-yl)isophthalate(PIP) ligands as the tiles.It features a gyroelongated square bipyramidal geometry,a J_(17) Johnson solid.The cage compound exhibits a much higher uptake capacity of C_3H_8 than CH_4,representing a promising material for the separation of these two gases.
引文
[1]Hang,X.;Wang,S.;Zhu,X.;Han,H.;Liao,W.CrystE ng Comm.2016,DOI:10.1039/c6ce00028b.
[2]Hang,X.;Du,S.;Wang,S.;Liao,W.Inorg.Chem.Commun.2014,47,152.
[3]Hang,X.;Liu,B.;Zhu,X.;Wang,S.;Han,H.;Liao,W.;Liu,Y.;Hu,C.;J.Am.Chem.Soc.2016,138,2969.
