Two luminescent Zn(<scp>ii</scp>)/Cd(<scp>ii</scp>) metal–organic frameworks as rare multifunctional sensors
作者:Jinfang Zhang、Linpei Gong、Jiaoyang Feng、Junjie Wu、Chi Zhang
DOI:10.1039/c7nj01072a
日期:——
4-connected net with a Schläfli symbol of (44·62) constructed by flywheel-shaped [Zn2(COO)4] dimeric units, 1,4-ndc single bridges, and double bridges composed of 3-abpt and 1,4-ndc. 2 displays a 3-D 2-fold interpenetrated six-connected architecture with a Schläfli symbol of (412·63), fabricated by planar [Cd2(COO)4] dimeric units, 3-abit double bridges, and 1,4-ndc single bridges. 1 and 2 exhibit stronger luminescence
在这里,两个新的Zn(II)/ Cd(II)MOF,即[Zn 2(1,4-ndc)2(3-abpt)]·2DMF} n(1)和[Cd(1,4- ndc)(3-bit)]·H 2 O} n(2)(1,4-ndc = 1,4-萘二甲酸,3-appt = 4-氨基-3,5-双(3-吡啶基)- 1,2,4-三唑,3-bit分别基于3-abpt和3-bit,4-bit-3,5-bis(咪唑-1-基甲基)-1,2,4-triazole),合成了含有相同官能团的4-氨基-1,2,4-三唑,并通过单晶和粉末X射线衍射,元素分析,FT-IR光谱和TGA对结构进行了表征。X射线结构分析表明1采用由飞轮形[Zn 2(COO)4 ]二聚体单元,1,4-ndc单桥和双桥组成的Schdäfli符号为(4 4 ·6 2)的2-D 4-连接网3-appt和1,4-ndc。图2显示了由平面[Cd 2(COO)4 ]二聚