期刊
SURFACE SCIENCE
卷 523, 期 1-2, 页码 141-150出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/S0039-6028(02)02405-6
关键词
scanning tunneling microscopy; copper
Low-temperature scanning tunnelling microscopy reveals seven coexisting structures of iodobenzene (IC6H5) adsorbed on Cu(1 1 1) at approximate to55 K. Only the least dense structure reflects the threefold symmetry of the surface. The other structures show p2-symmetry. In the densest structure molecules adsorb with their pi system perpendicular to the surface. We identify as a common driving force for ordering the tendency of the phenyl rings (C6H5) to encapsulate the iodine. (C) 2002 Elsevier Science B.V. All rights reserved.
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