A novel method for creation of free volume in a one-component self-assembled monolayer.: Dramatic size effect of para-carborane

被引:61
作者
Ito, M
Wei, TX
Chen, PL
Akiyama, H
Matsumoto, M
Tamada, K
Yamamoto, Y [1 ]
机构
[1] Tohoku Univ, Grad Sch Sci, Dept Chem, Sendai, Miyagi 9808578, Japan
[2] AIST, Tsukuba, Ibaraki 3058565, Japan
关键词
D O I
10.1039/b411121d
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
We fabricated the self-assembled monolayers (SAMs) composed of 4-(12-(10-mereaptodecyl)-1,1,2-dicarba-closo-dodecaborane)-4'-octyloxy azobenzene and 4-(10-mercaptodecyloxy)-4'-octyloxyazobenzene on a gold surface, and performed photoswitching experiments. The SAM including p-carborane exhibited a much higher and more reversible photochemical response in comparison with the SAM in the absence of the p-carborane. This result suggests that the free volume of the azobenzene moiety to change its conformation is increased due to the size effect of the p-carborane.
引用
收藏
页码:478 / 483
页数:6
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