QQ客服 官方微博 反馈留言

	Two-dimensional supramolecular assemblies of quinacridone derivatives: From achiral to chiral racemates and domains
	Ye, KQ ; Wang, Y
	2010-05-06 ; 2010-05-06
关键词	SCANNING-TUNNELING-MICROSCOPY LIQUID-CRYSTAL INTERFACE MONOLAYER MOLECULES STM ORIENTATION EXPRESSION FILMS Chemistry, Physical
中文摘要	We described the two-dimensional (2D) assemblies of N,N'-dialkyl-substituted quinacridone derivatives on highly orientated pyrolytic graphite (HOPG) observed by scanning tunneling microscopy (STM), and focused on how minor structural variations can influence the supramolecular organization of the compounds. For quinacridone derivatives with or without methyl groups only the same enantiotopic faces of the quinacridone cores are observed with high resolution depending on the length of the substituted alkyl chains. For coadsorptions of quinacridone derivatives and fatty acids at the liquid/graphite interface, we have found interestingly that quinacridone derivatives with rnethyl groups form chiral racemates, whereas the quinacridone derivative without methyl groups forms chiral domains. The chiral 2D structures formed at the interface are only observed when fatty acids are present as guest molecules and for quinacridone derivatives substituted with long alkyl chains, -C22H45. These findings suggest that the 2D nanopatterned structure of quinacridone derivatives with light-emitting properties can be adjusted by controlling intermolecular interaction through tailor-made molecular building blocks and coadsorption.
语种	英语 ; 英语
出版者	AMER CHEMICAL SOC ; WASHINGTON ; 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
内容类型	期刊论文
源URL	[http://hdl.handle.net/123456789/12422]
专题	清华大学
推荐引用方式 GB/T 7714	Ye, KQ,Wang, Y. Two-dimensional supramolecular assemblies of quinacridone derivatives: From achiral to chiral racemates and domains[J],2010, 2010.
APA	Ye, KQ,&Wang, Y.(2010).Two-dimensional supramolecular assemblies of quinacridone derivatives: From achiral to chiral racemates and domains..
MLA	Ye, KQ,et al."Two-dimensional supramolecular assemblies of quinacridone derivatives: From achiral to chiral racemates and domains".(2010).

个性服务

查看访问统计

相关权益政策

暂无数据

收藏/分享

除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。