Homochiral zinc benzene-1,3,5-tricarboxylate coordination networks with a chiral nitrogen ligand or template: Spontaneous resolution of a twofold interpenetrated 2D sql (4,4) network and formation of enantiopure 3D sra (SrAl2) networks
作者:Anas Tahli、Anne-Christine Chamayou、Ümit Köc、Robin Brückner、Reda F.M. Elshaarawy、Christian Heering、Christoph Janiak
DOI:10.1016/j.ica.2016.05.042
日期:2016.8
Abstract A pair of homochiral enantiomorphic two-fold interpenetrated, mixed-ligand coordination polymers (CPs), 2D-[Zn(μ-Hbtc)(μ-R-btrip)]·H2O}n 1 and 2D-[Zn(μ-Hbtc)(μ-S-btrip)]·H2O}n 2, were found in a racemic conglomerate in space group P212121 with enantiomorphous crystals by spontaneous resolution (H3btc = benzene-1,3,5-tricarboxylic acid, trimesic acid). The racemic ligand 1,2-bis(1,2,4-triazol-4-yl)propane
摘要一对同手性对映体互穿双配位配位聚合物(CPs)2D-[Zn(μ-Hbtc)(μ-R-btrip)]·H2O} n 1和2D-[Zn(通过自发分辨(H3btc =苯-1,3,5-三羧酸,均苯三酸)在具有对映体晶体的空间群P212121的外消旋团块中发现了μ-Hbtc)(H-O-btrip)]·H2O} n 2 )。外消旋配体1,2-双(1,2,4-三唑-4-基)丙烷(rac-或R,S-btrip)自发与Zn(II)配位并从Zn(NO3)2·结晶在水热条件下,在偏苯三酸(H3btc)存在下,1H为6H2O或ZnBr2为2。1和2的单晶分析揭示了基于Zn原子上的Zn(Hbtc)}和Zn(btrip)}链互连的手性二维sql(4,4)网络。每个2D sql网络通过对称相关网络进行2倍互穿。互穿似乎受三唑–C–H⋯N氢键控制。当对映纯席夫碱2-((E)-(1-(4-(甲氧基苯基)乙基氨基