Kikkawa Yoshihiro, Tsuzuki Seiji, Taguchi Kazuhiro, Kashiwada Ayumi, Hiratani Kazuhisa
National Institute of Advanced Industrial Science and Technology (AIST), 1-1-1 Higashi, Tsukuba, Ibaraki 305-8565, Japan.
Phys Chem Chem Phys. 2017 May 31;19(21):13579-13584. doi: 10.1039/c7cp02064c.
Scanning tunneling microscopy (STM) investigation was performed for the blends of isobutenyl compounds, in which the long alkyl chains were connected with ester or carbamoyl linkages. Each component by itself did not show the odd-even effect of alkyl chain length, whereas after blending them, the 2D structures drastically changed and modulated to exhibit odd-even effect. Star, lozenge, twist-like, and linear structures were found, dependent on the blend ratio and alkyl chain length. The blend ratio dependence of 2D structures was explained in terms of homogeneous and heterogeneous dimerization due to the interdigitation of alkyl chains.
对长烷基链通过酯键或氨基甲酰基键连接的异丁烯基化合物共混物进行了扫描隧道显微镜（STM）研究。每种组分本身并未显示出烷基链长度的奇偶效应，然而将它们共混后，二维结构发生了剧烈变化并调整以呈现奇偶效应。根据共混比例和烷基链长度，发现了星形、菱形、扭曲状和线性结构。二维结构对共混比例的依赖性是通过烷基链相互交错导致的均相和异相二聚作用来解释的。
