Photoprocesses in Bis-Diethylamino Derivatives of 1,4-and 1,3-Distyrylbenzene

被引：0

作者：

Atabekyan, Levon S. ^{[1
]}

Avakyan, Vitaly G. ^{[1
]}

Fomina, Marina V. ^{[1
]}

Nuriev, Vyacheslav N. ^{[1
,2
]}

Medved'ko, Alexey V. ^{[1
,3
]}

Vatsadze, Sergey Z. ^{[2
,3
]}

Gromov, Sergey P. ^{[1
,2
]}

Chibisov, Alexander K. ^{[1
]}

机构：

[1] NRC Kurchatov Inst, Photochem Ctr, Kurchatov Complex Crystallog & Photon, Novatorov Str 7A-1, Moscow 119421, Russia

[2] M V Lomonosov Moscow State Univ, Dept Chem, Build 3,1 Leninskie Gory, Moscow 119991, Russia

[3] Russian Acad Sci, ND Zelinsky Inst Organ Chem, 47 Leninskii Prospekt, Moscow 119991, Russia

来源：

MOLECULES | 2024年 / 29卷 / 17期

基金：

俄罗斯科学基金会;

关键词：

distyrylbenzene; fluorescence; laser photolysis; triplet-triplet dismutation; radical species; PHOTOCHEMISTRY; THIOANALOGS; FLUORESCENT; ION;

D O I：

10.3390/molecules29174139

中图分类号：

Q5 [生物化学]; Q7 [分子生物学];

学科分类号：

071010 ; 081704 ;

摘要：

The photoprocesses of diethylamino derivatives of 1,4- and 1,3-distyrylbenzenes in MeCN were studied using absorption, luminescence, 1H NMR, and laser kinetic spectroscopy. Compounds 1 and 2 undergo intersystem crossing to the triplet state and exhibit delayed fluorescence. It was concluded that dye radical anions and radical cations are formed upon dismutation of the triplet state in the presence of an electron donor or acceptor. Quantum mechanical calculations for the structures of diethylamino distyrylbenzenes in the ground and excited states were carried out, making it possible to establish the structures of isomers and the most stable conformers for both compounds.

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页数：17

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