title: Role of Thermal Process on Self-Assembled Structures of 4'-([2,2':6',2''-Terpyridin]-4'-Yl)-[1,1'-Biphenyl]-4-Carboxylic Acid on Au(III).
abstract: The role of dynamic processes on self-assembled structures of 4'-([2,2':6', 2''-terpyridin]-4'-yl)-[1,1'-biphenyl]-4-carboxylic acid (l) molecules on Au(III) has been studied by scanning tunneling microscopy. The as-deposited monolayer is closed-packed and periodic in a short-range due to dipole forces. A thermal annealing process at 110 degrees drives such disordered monolayer into ordered chain-like structures, determined by the combination of the dipole forces and hydrogen bonding. Further annealing at 130 degrees turns the whole monolayer into a bowknot-like structure in which hydrogen bonding plays the dominant role in the formation of assembled structures. Such dependence of an assembled structure on the process demonstrates that an assembled structure can be regulated and controlled not only by the molecular structure but also by the thermal process to form the assembled structure.
authors.affiliation: Department of Physics, Nanchang University, Nanchang 330031, China. xiaoming.liu@mail.zjxu.edu.cn.
authors.forename: Xiaoqing
authors.initials: X
authors.lastname: Liu
authors.forename: Yongli
authors.initials: Y
authors.lastname: Wang
authors.forename: Xin
authors.initials: X
authors.lastname: Song
authors.forename: Feng
authors.initials: F
authors.lastname: Chen
authors.forename: Hongping
authors.initials: H
authors.lastname: Ouyang
authors.forename: Xueao
authors.initials: X
authors.lastname: Zhang
authors.forename: Yingxiang
authors.initials: Y
authors.lastname: Cai
authors.forename: Xiaoming
authors.initials: X
authors.lastname: Liu
authors.forename: Li
authors.initials: L
authors.lastname: Wang