溶剂对3,8-双十六烷氧基苯并[c]噌啉在高度取向热解石墨上自组装结构的影响。

Solvent effect on self-assembled structures of 3,8-bis-hexadecyloxy-benzo[c]cinnoline on highly oriented pyrolytic graphite.

作者信息

Shao Xiang, Luo Xiancai, Hu Xinquan, Wu Kai

机构信息

State Key Laboratory for Structural Chemistry of Unstable and Stable Species, Institute of Physical Chemistry, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China.

出版信息

J Phys Chem B. 2006 Jan 26;110(3):1288-93. doi: 10.1021/jp055910n.

DOI:10.1021/jp055910n

PMID:16471676

Abstract

3,8-Bis-hexadecyloxy-benzo[c]cinnoline (BBC16) self-assembled into two structures at highly oriented pyrolytic graphite (HOPG) surface: one was formed by molecules with a V-like configuration (C2v symmetry) and the other by molecules with a Z-like configuration (C(s) symmetry). The self-assembled structures could be tweaked by the solvents used. In the self-assembled monolayers (SAMs) on HOPG, the BBC16 molecule adopted the V-like configuration in polar solvents and the Z-like configuration in nonpolar solvents. Moreover, the solvent viscosity, solvent dissolvability of BBC16, and substrate temperature also played some roles in tuning the two-dimensional self-assembled structures.

摘要

3,8-双十六烷氧基苯并[c]噌啉（BBC16）在高度定向热解石墨（HOPG）表面自组装成两种结构：一种由呈V形构型（C2v对称性）的分子形成，另一种由呈Z形构型（C(s)对称性）的分子形成。自组装结构可通过所使用的溶剂进行调整。在HOPG上的自组装单分子层（SAMs）中，BBC16分子在极性溶剂中采用V形构型，在非极性溶剂中采用Z形构型。此外，溶剂粘度、BBC16在溶剂中的溶解性以及底物温度在调节二维自组装结构方面也发挥了一定作用。