Three-Component Synthesis of Dioxaphosphorane-Fused Diphosphacycles Exhibiting Unique Dynamic Fluorescence "On/Off" Properties

被引：8

作者：

Li, Chenchen ^{[1
]}

Huang, Haiyang ^{[1
]}

Sun, Longgen ^{[1
]}

Huang, Mingqing ^{[1
]}

Ding, Haixin ^{[1
]}

Bai, Jiang ^{[1
]}

Cao, Ban-Peng ^{[1
]}

Xiao, Qiang ^{[1
]}

机构：

[1] Jiangxi Sci & Technol Normal Univ, Inst Organ Chem, Key Lab Organ Chem Jiangxi Prov, Nanchang 330013, Peoples R China

来源：

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION | 2023年 / 62卷 / 06期

基金：

中国国家自然科学基金;

关键词：

Dioxaphosphorane; Diphosphacycles; Electrophilic Cyclization; Fluorescent Switch; Phosphenium Cation; LIGHT-EMITTING-DIODES; CATHODE BUFFER LAYERS; PHOTOPHYSICAL PROPERTIES; PENTACOORDINATED MOLECULES; BENZOPHOSPHOLE OXIDE; PI-SYSTEMS; PHOSPHORUS; COORDINATION; DESIGN; OXAPHOSPHORANES;

D O I：

10.1002/anie.202215436

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Rigidly planar polycyclic phosphacycles featuring an internal dioxaphosphorane are promising photofunctional materials. However, the lack of efficient synthetic methods resulted in limited structural diversities which significantly hampered extensive study. Herein, we report a straightforward three-component synthesis of novel dioxaphosphorane-fused diphosphacycles with distinctive photophysical properties. Control experiments and theory calculations were performed to account for a plausible reaction mechanism. We also systematically investigated the structure-property relationships of these unprecedented platforms by combining experiments (X-ray analysis, optical and redox properties) and theoretical computations. Based on their unique structure and properties, a novel fluorescent switch for pH sensing was revealed by a dynamic ring-opening/ring-closing process.

引用

页数：8

共 107 条

[81] Phosphorus-Containing Polycyclic Aromatic Hydrocarbons [J].