Enhanced head-to-head photodimers in the photocyclodimerization of anthracenecarboxylic acid with a cationic pillar[6]arene

The complexation behaviors of anthracenecarboxylic acid and water-soluble cationic pillararenes have been investigated by 1H NMR,UV-vis and ITC methods.The cationic pillar[6]arene was found to stepwise form 1：1 and 1：2 complexes,having a large K1 and a relatively small K2 values.Photocyclodimerizati...

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Published inChinese chemical letters Vol. 27; no. 7; pp. 1017 - 1021
Main Authors Gui, Jian-Chang, Yan, Zhi-Qiang, Peng, Yuan, Yi, Ji-Gao, Zhou, Da-Yang, Su, Dan, Zhong, Zhi-Hui, Gao, Guo-Wei, Wu, Wan-Hua, Yang, Cheng
Format Journal Article
LanguageEnglish
Published Elsevier B.V 01.07.2016
Subjects
Anthracenecarboxylic acid
Photocyclodimerization
Pillararene
Supramolecular complexation
光二聚反应
反应条件
水溶性
甲酸
络合性能
芳烃
蒽
阳离子柱
Anthracenecarboxylic acid
Supramolecular complexation
Photocyclodimerization
Pillararene
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Summary:The complexation behaviors of anthracenecarboxylic acid and water-soluble cationic pillararenes have been investigated by 1H NMR,UV-vis and ITC methods.The cationic pillar[6]arene was found to stepwise form 1：1 and 1：2 complexes,having a large K1 and a relatively small K2 values.Photocyclodimerization of AC within the pillar[6]arene improved the yield of the head-to-head photodimers.Up to 4.97 HH/HT ratio has been reached by optimizing the reaction conditions.
Bibliography:11-2710/O6
Pillar[6]arene;Photocyclodimerization;Anthracenecarboxylic acid;Supramolecular complexation
The complexation behaviors of anthracenecarboxylic acid and water-soluble cationic pillararenes have been investigated by 1H NMR,UV-vis and ITC methods.The cationic pillar[6]arene was found to stepwise form 1：1 and 1：2 complexes,having a large K1 and a relatively small K2 values.Photocyclodimerization of AC within the pillar[6]arene improved the yield of the head-to-head photodimers.Up to 4.97 HH/HT ratio has been reached by optimizing the reaction conditions.
ISSN:1001-8417
1878-5964
DOI:10.1016/j.cclet.2016.04.021