A nonalternant azulene-embedded carbon nanohoop featuring anti-Kasha emission and tunable properties upon pH stimuli-responsiveness

被引：13

作者：

Li, Xiaonan ^{[1
]}

Jia, Luyang ^{[1
]}

Wang, Wenguang ^{[1
]}

Wang, Ying ^{[1
]}

Sun, Di ^{[2
]}

Jiang, Hua ^{[1
]}

机构：

[1] Beijing Normal Univ, Coll Chem, Beijing 100875, Peoples R China

[2] Shandong Univ, Sch Chem & Chem Engn, Jinan 250100, Peoples R China

来源：

JOURNAL OF MATERIALS CHEMISTRY C | 2023年 / 11卷 / 04期

基金：

北京市自然科学基金; 中国国家自然科学基金;

关键词：

POLARITY CHANGE; TERAZULENE; NANORINGS; DESIGN; OFETS;

D O I：

10.1039/d2tc04321a

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The insertion of a nonalternant pi-system into the skeletons of [n]cycloparaphenylenes ([n]CPPs) can significantly alter their optoelectronic properties. We herein present a nonalternant azulene-embedded carbon nanohoop 1,3-Az[9]CPP. The investigations revealed that 1,3-Az[9]CPP demonstrates unique properties including anti-Kasha emission, reversible pH stimuli-responsiveness and tunable band gaps upon protonation and deprotonation. Importantly, 1,3-Az[9]CPP exhibits a highly selective binding for C-60 over C-70 (K-C60/K-C70 = 30) in acidic media. Moreover, the molecular structures of 1,3-Az[9]CPP and its fullerene complex C-60@1,3-Az[9]CPP were confirmed by single-crystal X-ray diffraction. Notably, 1,3-Az[9]CPP is the first pH-responsive nonalternant all-carbon nanohoop, which may hold significant promising applications in tunable optoelectronic materials.

引用

页码：1429 / 1434

页数：6