金属有机框架单晶内的N，N'-二乙基甲酰胺溶剂诱导转化级联反应

An N,N'-diethylformamide solvent-induced conversion cascade within a metal-organic framework single crystal.

作者信息

Chen Jing, Chao Meng-Yao, Xu Bo-Wei, Zhang Wen-Hua, Young David J

机构信息

College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, China.

College of Engineering, Information Technology & Environment, Charles Darwin University, Darwin, Northern Territory 0909, Australia.

出版信息

Chem Commun (Camb). 2020 Jun 2;56(44):5877-5880. doi: 10.1039/d0cc02420a.

DOI:10.1039/d0cc02420a

PMID:32364556

Abstract

Crystals of a two-dimensional (2D) metal-organic framework (MOF) [Cd3(BTB)2(DEF)4]·2(DEF)0.5 (1; BTB = benzene-1,3,5-tribenzolate; DEF = N,N'-diethylformamide) immersed in a solution of trans-1,2-bis(4-pyridyl)ethylene (BPEE) yields an interpenetrated three-dimensional (3D) MOF of [Cd3(BTB)2(BPEE)(H2O)2]·(BPEE)·xSol (2). Crystals of MOF 2, in turn, undergo a cascade conversion when immersed in DEF, yielding [Cd3(BTB)2(BPEE)1.8(DEF)0.9(H2O)0.8]·xSol (3a) over 100 seconds and [Cd3(BTB)2(BPEE)2(DEF)2]·xSol (4) after one hour, before finally shuttling back to MOF 1 after six hours.

摘要

将二维（2D）金属有机框架（MOF）[Cd3（BTB）2（DEF）4]·2（DEF）0.5（1；BTB = 苯-1,3,5-三苯甲酸酯；DEF = N，N'-二乙基甲酰胺）的晶体浸入反式-1,2-双（4-吡啶基）乙烯（BPEE）溶液中，会生成[Cd3（BTB）2（BPEE）（H2O）2]·（BPEE）·xSol（2）的互穿三维（3D）MOF。反过来，MOF 2的晶体浸入DEF中时会发生级联转化，在100秒内生成[Cd3（BTB）2（BPEE）1.8（DEF）0.9（H2O）0.8]·xSol（3a），一小时后生成[Cd3（BTB）2（BPEE）2（DEF）2]·xSol（4），最终在六小时后又变回MOF 1。