Fluorescence Quenching of Carbonyl-Twisted 5-Acyl-1-dimethylaminonaphthalenes by Alcohols

被引：7

作者：

Anderson, Rachel S. ^{[1
]}

Nagirimadugu, Newton, V ^{[1
]}

Abelt, Christopher J. ^{[1
]}

机构：

[1] Coll William & Mary, Dept Chem, Williamsburg, VA 23185 USA

来源：

ACS OMEGA | 2019年 / 4卷 / 09期

基金：

美国国家科学基金会;

关键词：

PRODAN; SCALE;

D O I：

10.1021/acsomega.9b01905

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Derivatives of 1-dimethylamino-5-propionylnaphthalene that constrain the carbonyl group into a five-, six-, and seven-membered ring were prepared, and their fluorescence quenching in protic solvents was studied. Evidence for enhanced quenching due to carbonyl twisting out of the molecular plane is presented, but this effect is heavily masked by the strong quenching by all of the derivatives and by the ring size-dependent deactivation seen in polar, aprotic solvents. Calculations show strong, ring size-dependent vibrational coupling between the carbonyl group and the naphthalene ring in the first excited state.

引用

页码：14067 / 14073

页数：7

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