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题名: Chain-length effects on molecular conformation in and chirality of self-assembled monolayers of alkoxylated benzo[c]cinnoline derivatives on highly oriented pyrolytic graphite
作者: Shao, Xiang;  Luo, Xiancai;  Hu, Xinquan;  Wu, Kai
刊名: JOURNAL OF PHYSICAL CHEMISTRY B
发表日期: 2006-08-10
DOI: 10.1021/jp060811a
卷: 110, 期:31, 页:15393-15402
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ;  Physical Sciences
类目[WOS]: Chemistry, Physical
研究领域[WOS]: Chemistry
英文摘要: Self-assembled structures of alkoxylated benzo[ c] cinnoline derivatives prepared on highly oriented pyrolytic graphite at room temperature from their solutions in solvents such as 1-phenyloctane, toluene, and 1-octanol were studied by scanning tunneling microscopy. The alkoxy chain length markedly affected the molecular conformations in 2-dimensional assemblies of these derivatives. Long-chain derivatives adopted the trans conformations more often than cis, whereas short-chain derivatives took exclusively the cis conformations in the self-assembled monolayers (SAMs). For the derivatives of intermediate chain lengths, polymorphism existed, with four molecular conformations identified experimentally. Experimental evidence substantiated the formation of chiral SAM structures at the surface, which can be explained by the conformations of the molecules. The chirality was also affected by the chain length of the molecules. A simple method analyzing the angles between different domains in the SAMs was used to identify the molecular conformations and to predict their relative structures.
关键词[WOS]: SCANNING-TUNNELING-MICROSCOPY ;  LIQUID-SOLID INTERFACE ;  METAL-SURFACES ;  ELECTROCHEMICAL-BEHAVIOR ;  2-DIMENSIONAL CRYSTALS ;  PHYSISORBED MONOLAYERS ;  STM INVESTIGATIONS ;  ORGANIC-MOLECULES ;  ACHIRAL MOLECULES ;  ACID-DERIVATIVES
语种: 英语
WOS记录号: WOS:000239463300049
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/140043
Appears in Collections:中国科学院大连化学物理研究所_期刊论文

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作者单位: 1.Peking Univ, Coll Chem & Mol Engn, Inst Chem Phys, State Key Lab Struct Chem Stable & Unstable Speci, Beijing 100871, Peoples R China
2.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian 116023, Peoples R China

Recommended Citation:
Shao, Xiang,Luo, Xiancai,Hu, Xinquan,et al. Chain-length effects on molecular conformation in and chirality of self-assembled monolayers of alkoxylated benzo[c]cinnoline derivatives on highly oriented pyrolytic graphite[J]. JOURNAL OF PHYSICAL CHEMISTRY B,2006,110(31):15393-15402.
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