Quinone electrochemistry altered by local hydrophobic environment and hydrogen bonding interactions

被引:11
|
作者
Kim, R. Soyoung [1 ]
Park, Wonchoul [2 ]
Hong, Heejeong [2 ]
Chung, Taek Dong [1 ]
Kim, Sunghyun [2 ]
机构
[1] Seoul Natl Univ, Dept Chem, Seoul 151747, South Korea
[2] Konkuk Univ, Dept Biosci & Biotechnol, Seoul 143701, South Korea
基金
新加坡国家研究基金会;
关键词
Quinone SAMs; Alkyl spacer; Local hydrophobicity; Hydrogen bonding; Competing intramolecular interactions; REDUCTION;
D O I
10.1016/j.elecom.2014.01.005
中图分类号
O646 [电化学、电解、磁化学];
学科分类号
081704 ;
摘要
Creating SAMs on gold from hydroquinone containing molecules capped with long alkyl chains, we studied the influence of a hydrophobic alkyl layer on the electrochemical reaction of quinones beneath it. A new pair of redox waves emerged and grew in size as the thickness of the alkyl spacer layer increased. The origin of the new peaks was attributed to hydrogen bonding interaction by the nearby amine group, and its strength was influenced by local hydrophobicity and the presence of other intramolecular hydrogen bonding. (C) 2014 Elsevier B.V. All rights reserved.
引用
收藏
页码:39 / 43
页数:5
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