Design of twisted NIR BOPYIN with highly fluorescent intensity for monitoring viscosity

被引：6
作者：
Yuan, Xiaohui [1 ]
Hu, Yanjun [2 ]
Zheng, Kaibo [1 ,3 ]
Liu, Debao [1 ]
Su, Peng [1 ]
Hu, Cong [1 ]
Yan, Jiaying [1 ,3 ]
Zhang, Nuonuo [1 ,3 ]
机构：
[1] China Three Gorges Univ, Coll Mat & Chem Engn, Key Lab Inorgan Nonmetall Crystalline & Energy Co, Yichang 443002, Hubei, Peoples R China
[2] Shandong Chenming Paper Holdings Ltd, Shouguang 262700, Shandong, Peoples R China
[3] Hubei Three Gorges Lab, Yichang 443007, Hubei, Peoples R China
来源：
JOURNAL OF MOLECULAR LIQUIDS | 2022年 / 349卷
基金：
中国国家自然科学基金;
关键词：
BOPYIN; NIR fluorescent dye; Viscosity; Molecular rotor; Motion-induced change in emission; MITOCHONDRIAL VISCOSITY; LYSOSOMAL VISCOSITY; ALZHEIMERS-DISEASE; LIVING CELLS; PROBE; 2-PHOTON; COUMARIN; ROTOR;
D O I：
10.1016/j.molliq.2022.118493
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
A set of BOPYIN-based molecular rotors have been systematically synthesized and investigated to study the relationship between intramolecular motions and viscosity sensitivity. YD6 possesses NIR emission at 723 nm, high quantum yield (19-48%) and large Stokes shift (2620-5144 cm(-1)) due to the twisted structure via the single crystal structure. YD1-3,5,6 show high viscosity response with dye-dependent constants ranging from 0.21 to 0.39. Through experimental and computational studies, the different substituent strongly influences the viscosity sensitivity, likely resulting from inherent rotational energy barriers between the twisted configurations. These findings enable rational structure modifications of BOPYIN molecular rotors for highly effective viscosity detection and recognition. (C) 2022 Elsevier B.V. All rights reserved.
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页数：9
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