Enantiomeric MOF Crystals Using Helical Channels as Palettes with Bright White Circularly Polarized Luminescence

被引：177

作者：

Zhang, Chong ^{[1
,2
]}

Yan, Zhi-Ping ^{[3
]}

Dong, Xi-Yan ^{[1
,2
,4
]}

Han, Zhen ^{[1
,2
]}

Li, Si ^{[1
,2
]}

Fu, Ting ^{[1
,2
]}

Zhu, Yan-Yan ^{[1
,2
]}

Zheng, You-Xuan ^{[3
]}

Niu, Yun-Yin ^{[1
,2
]}

Zang, Shuang-Quan ^{[1
,2
]}

机构：

[1] Zhengzhou Univ, Green Catalysis Ctr, Zhengzhou 450001, Peoples R China

[2] Zhengzhou Univ, Coll Chem, Zhengzhou 450001, Peoples R China

[3] Nanjing Univ, Collaborat Innovat Ctr Adv Microstruct, Sch Chem & Chem Engn, State Key Lab Coordinat Chem,Jiangsu Key Lab Adv, Nanjing 210023, Peoples R China

[4] Henan Polytech Univ, Coll Chem & Chem Engn, Jiaozuo 454003, Henan, Peoples R China

来源：

ADVANCED MATERIALS | 2020年 / 32卷 / 38期

基金：

中国国家自然科学基金;

关键词：

chirality and energy transfer; full-color circularly polarized luminescence; helical channel; metal-organic framework; white-circularly polarized light-emitting diode; METAL-ORGANIC FRAMEWORKS; ENERGY-TRANSFER; FULL-COLOR; QUANTUM DOTS; CHIRALITY; ELECTROLUMINESCENCE; NANOASSEMBLIES; EFFICIENCY; PLATFORM; DOCKING;

D O I：

10.1002/adma.202002914

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The host-guest chemistry of metal-organic frameworks (MOFs) has enabled the derivation of numerous new functionalities. However, intrinsically chiral MOFs (CMOFs) with helical channels have not been used to realize crystalline circularly polarized luminescence (CPL) materials. Herein, enantiomeric pairs of MOF crystals are reported, where achiral fluorophores adhere to the inner surface of helical channels via biology-like H-bonds and hence inherit the helicity of the host MOFs, eventually amplifying the luminescence dissymmetry factor (g(lum)) of the hostl/d-CMOF (+/- 1.50 x 10(-3)) to a maximum of +/- 0.0115 for the compositel/d-CMOF superset of fluorophores.l/d-CMOF superset of fluorophores in pairs generate bright color-tunable CPL and almost ideal white CPL (0.33, 0.32) with a record-high photoluminescence quantum yield of approximate to 30%, which are further assembled into a white circularly polarized light-emitting diode. The present strategy opens a new avenue for propagating the chirality of MOFs to realize universal chiroptical materials.

引用

页数：11

共 84 条

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