物理化学学报2017，Vol.33Issue(3)：627-632,6.DOI:10.3866/PKU.WHXB201612051
基于全氟酞菁铜和碗烯双分子体系在银和石墨表面自组装行为的低温扫描隧道显微镜研究
LT-STM Investigation of the Self-Assembled F16CuPc-Corannulene Binary System on Ag(111) and Graphite Surfaces
摘要
Abstract
Corannulene (COR) is considered a promising molecular building block for organic electronics owing to its intriguing geometrical and electronic properties.Intensive research efforts have been devoted to understanding the assembly behavior and electronic structure of COR and its derivatives on various metal surfaces via low-temperature scanning tunneling microscopy (LT-STM).Here we report the formation of binary molecular networks of copper hexadecafluorophthalocyanine (F16CuPc)-COR self-assembled on the highly oriented pyrolytic graphite (HOPG) and Ag(111) substrates.Intermolecular hydrogen bonding between F16CuPc and COR facilitates the formation of binary molecular networks on HOPG and further induces a preference for bowl-down configured COR molecules.This observed configuration preference disappears on Ag(111) substrate,where COR molecules lie on the substrate with their bowl openings pointing up and down randomly.We propose that strong interfacial interactions between the molecule and Ag(111) surface constrain the bowl inversion of the COR molecule,which thus retains its initial configuration upon adsorption.关键词
分子自组装/双分子网络结构/碗烯/低温扫描隧道显微镜/分子间氢键Key words
Molecular assembly/Binary molecular networks/Corannulene/Low-temperature scanning tunneling microscopy/Intermolecular hydrogen bonding分类
化学化工引用本文复制引用
郭瑞,张嘉霖,赵宋焘,余小江,钟舒,孙硕,李震宇,陈伟..基于全氟酞菁铜和碗烯双分子体系在银和石墨表面自组装行为的低温扫描隧道显微镜研究[J].物理化学学报,2017,33(3):627-632,6.基金项目
The project was supported by the National Key Basic Research Program of China (973) (2015CB856505),Singapore MOE (R143-000-652-112),Singapore NRF-CRP grant of "Doped Contacts and Heterostructures for Solution-Processable Plastic Electronics"(R143-001-608-281),Jiangsu Province Government Research Platform Grant,China,and NUSRI Seed Fund.国家重点基础研究发展规划项目(973) (2015CB856505),新加坡教育部(MOE,Tier Ⅱ,R143-000-652-112),新加坡国家研发基金会(NRF,R143-001-608-281),江苏省平台建设项目和新加坡国立大学苏州研究院资助 （973）
