In-situ cation exchange enhances room temperature phosphorescence of a family of metal-organic frameworks

• 作者: Rui Feng Zi-Ying Li Zhao-Quan Yao Zi-Ang Guo Yi-Nan Zhang Hao-Xiang Sun Wei Li Xian-He Bu
• 来源期刊: 中国科学：化学（英文版）
• 年，卷（期）: 2022,（1）
• 所属期刊栏目: ARTICLES
• 页码范围: 128-134
• 页数: 7页
• 语种: 英文

摘要

The rational designability and chemical tunability of metal-organic frameworks (MOFs) are enabling tributes to efficaciously enhance their room temperature phosphorescence (RTP) performance.A family of stable anionic MOFs,[Zn2(4,5-ImDC)2]M2(NKU-132,M =(CH3)2NH2 or (CH2CH3)2NH2),featuring significant RTP have been synthesized.By rational cation selection and in-situ replacement from dimethylammonium to diethylammonium,the phosphorescence lifetime is increased from 30.88 to 126.3 ms,along with less sensitivity to air.This work provides an anti-quenching and lifetime tuning example for RTP-MOF materials via facile host-guest chemistry.