Solvent codeposition and cis-trans isomerization of isophthalic acid derivatives studied by STM

被引:125
|
作者
Vanoppen, P [1 ]
Grim, PCM [1 ]
Rucker, M [1 ]
DeFeyter, S [1 ]
Moessner, G [1 ]
Valiyaveettil, S [1 ]
Mullen, K [1 ]
DeSchryver, FC [1 ]
机构
[1] KATHOLIEKE UNIV LEUVEN,DEPT CHEM,LAB MOL DYNAM & SPECT,B-3001 HEVERLEE,BELGIUM
来源
JOURNAL OF PHYSICAL CHEMISTRY | 1996年 / 100卷 / 50期
关键词
D O I
10.1021/jp962737+
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
Scanning tunneling microscopy (STM) was used to study physisorbed monolayers of 5-octadecyloxyisophthalic acid (C(18)ISA) and 5-[omega-(4'-dodecyloxy-4-azobenzeneoxy)dodecyloxy]isophthalic acid (C-12(AZO)C(12)ISA) at a liquid/graphite interface. The acquired STM images exhibit the molecular packing of the monolayers with submolecular resolution. Monolayers formed by codeposition of solvent molecules and C(18)ISA or C-12(AZO)C-12- ISA molecules are found when 1-octanol and 1-undecanol are used as a solvent. The cis and trans isomers of C-12(AZO)C(12)ISA, the reagent and reaction product of a reversible photoinduced reaction, are simultaneously present and are both structurally identified at the liquid/graphite interface.
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页码:19636 / 19641
页数:6
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