Self-assembly of 1-nitronaphthalene on Au(111)

被引:73
作者
Böhringer, M
Morgenstern, K
Schneider, WD
Wühn, M
Wöll, C
Berndt, R
机构
[1] Ruhr Univ Bochum, Phys Chem 1, D-44780 Bochum, Germany
[2] Univ Kiel, Inst Expt & Angew Phys, D-24098 Kiel, Germany
[3] Univ Lausanne, Inst Phys Mat Condensee, CH-1015 Lausanne, Switzerland
关键词
aromatics; clusters; gold; low index single crystal surfaces; nucleation; self-assembly; scanning tunneling microscopy; single crystal epitaxy; single crystal surfaces;
D O I
10.1016/S0039-6028(99)01039-0
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
We report low-temperature scanning tunneling microscopy and near-edge X-ray absorption fine structure investigations of the organic molecule 1-nitronaphthalene adsorbed on the reconstructed Au(111) surface. Depending on the coverage, molecular structures of distinct dimensionality are observed. After saturation of the step edges with molecules, clusters form on the substrate terraces at coverages up to 0.15 monolayers (ML). The smallest clusters consist of three molecules and are stable at specific surface reconstruction sites only. In contrast, pinwheel-shaped clusters comprised of ten molecules are observed on various inequivalent sites of the reconstructed Au surface. For coverages larger than 0.2 ML one-dimensional molecular double chains prevail. The structure of the decamers and the chains is determined by intermolecular electrostatic forces, whereas their position and orientation are affected by the surface reconstruction. At saturation coverage a periodic two-dimensional close-packed arrangement of molecules that is independent of the surface reconstruction occurs simultaneously with one-dimensional structures along the uniaxial reconstruction domains. The structural features are discussed in terms of competing effects of intermolecular forces and the interaction with the substrate. (C) 2000 Elsevier Science B.V. All rights reserved.
引用
收藏
页码:199 / 210
页数:12
相关论文
共 34 条
[1]   NEAR-EDGE CORE PHOTOABSORPTION IN POLYACENES - MODEL MOLECULES FOR GRAPHITE [J].
AGREN, H ;
VAHTRAS, O ;
CARRAVETTA, V .
CHEMICAL PHYSICS, 1995, 196 (1-2) :47-58
[2]   SCANNING TUNNELING MICROSCOPY OBSERVATIONS ON THE RECONSTRUCTED AU(111) SURFACE - ATOMIC-STRUCTURE, LONG-RANGE SUPERSTRUCTURE, ROTATIONAL DOMAINS, AND SURFACE-DEFECTS [J].
BARTH, JV ;
BRUNE, H ;
ERTL, G ;
BEHM, RJ .
PHYSICAL REVIEW B, 1990, 42 (15) :9307-9318
[3]   CARBON-1S NEAR-EDGE-ABSORPTION FINE-STRUCTURE IN GRAPHITE [J].
BATSON, PE .
PHYSICAL REVIEW B, 1993, 48 (04) :2608-2610
[4]   Scanning tunneling microscope-induced molecular motion and its effect on the image formation [J].
Bohringer, M ;
Schneider, WD ;
Berndt, R .
SURFACE SCIENCE, 1998, 408 (1-3) :72-85
[5]  
Böhringer M, 1999, ANGEW CHEM INT EDIT, V38, P821, DOI 10.1002/(SICI)1521-3773(19990315)38:6<821::AID-ANIE821>3.0.CO
[6]  
2-A
[7]   Two-dimensional self-assembly of supramolecular clusters and chains [J].
Böhringer, M ;
Morgenstern, K ;
Schneider, WD ;
Berndt, R ;
Mauri, F ;
De Vita, A ;
Car, R .
PHYSICAL REVIEW LETTERS, 1999, 83 (02) :324-327
[8]   Corrugation reversal in scanning tunneling microscope images of organic molecules [J].
Bohringer, M ;
Schneider, WD ;
Berndt, R ;
Glockler, K ;
Sokolowski, M ;
Umbach, E .
PHYSICAL REVIEW B, 1998, 57 (07) :4081-4087
[9]  
BOHRINGER M, 2000, IN PRESS ANGEW CHEM
[10]  
Bohringer M., 1999, ANGEW CHEM, V111, P832