摘要
通过4-四氮唑-5-苯基-2,2':6',2"-三联吡啶和CdBr_2·4H_2O的水热反应合成了一例氮唑MOF[Cd(tzphtpy)_2]n·6.5nH_2O,它可以通过调节激发波长来调节蓝黄互补色的相对强度在一个很宽的范围内(286-386 nm)获得白光发射。这是首次在氮唑MOFs中使用配体中心的电荷转移和配体间π-π相互作用获得白光发射,我们的工作为获得氮唑或其他体系的白光发射材料提供了新的合成策略
An azole-based metal-organic framework[Cd(tzphtpy)_2]n·6.5nH_2O,hydrothermally synthesized from the reaction mixture of an azole ligand 4-(tetrazol-5-y1)phenyl-2,2':6',2"-terpyridine(Htzphtpy) and CdBr_2·4H_2O,displays direct white-light emissions at a wide range of excitation wavelengths(286-386 nm) through modulating the relative intensity of two complementary colors(blue and yellow).The synergism of ligand-centered charge transfer and interligand π-π interactions is firstly found in white-light emitting azole-based MOFs.Our work provides a new synthetic strategy for azole-based or other systems white-light emitting materials.
引文
[1]Wang,M.-S.;Guo,S.-P.;Li,Y.;Cai,L.-Z.;Zou,J.-P.;Xu,G.;Zhou,W.-W.;Zheng,F.-K.;Guo,G.-C.J.Am.Chem.Soc.,2009,131:13572.
[2]Wu,Z.-F.;Tan,B.;Wang,J.-Y.;Du,C.-F.;Deng,Z.-H.;Huang,X.-Y.Chem.Commun.,2015,51:157.