Exciplex Ensemble Modulated by Excitation Mode in Intramolecular Charge-Transfer Dyad: Effects of Temperature, Solvent Polarity, and Wavelength on Photochemistry and Photophysics of Tethered Naphthalene-Dicyanoethene System

被引：7

作者：

Aoki, Yoshiaki ^{[1
]}

Matsuki, Nobuo ^{[1
]}

Mori, Tadashi ^{[1
]}

Ikeda, Hiroshi ^{[2
]}

Inoue, Yoshihisa ^{[1
]}

机构：

[1] Osaka Univ, Grad Sch Engn, Dept Appl Chem, Suita, Osaka 5650871, Japan

[2] Osaka Prefecture Univ, Grad Sch Engn, Dept Appl Chem, Naka Ku, Sakai, Osaka 5998531, Japan

来源：

ORGANIC LETTERS | 2014年 / 16卷 / 18期

关键词：

CHIRAL FUMARATE; DYNAMICS; PHOTOCYCLOADDITION; STEREOSELECTIVITY; ALKENES;

D O I：

10.1021/ol502394g

中图分类号：

O62 [有机化学];

学科分类号：

070303 ; 081704 ;

摘要：

Solvent, temperature, and excitation wavelength significantly affected the photochemical outcomes of a naphthalene-dicyanoethene system tethered by different number (n) of methylene groups (1-3). The effect of irradiation wavelength was almost negligible for 2a but pronounced for 3a. The temperature dependence and theoretical calculations indicated the diversity of exciplex conformations, an ensemble of which can be effectively altered by changing excitation wavelength to eventually switch the regioselectivity of photoreactions.

引用

页码：4888 / 4891

页数：4

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