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Orientation and Arrangement of Octaruthenium Supramolecules with Alkyl Chains on Graphite
Author(s) -
Shieh DongLin,
Lin YiShiue,
Shiu KomBei,
Lin JongLiang
Publication year - 2007
Publication title -
european journal of inorganic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.667
H-Index - 136
eISSN - 1099-0682
pISSN - 1434-1948
DOI - 10.1002/ejic.200700757
Subject(s) - chemistry , scanning tunneling microscope , highly oriented pyrolytic graphite , alkyl , graphite , crystallography , self assembly , orientation (vector space) , nanotechnology , organic chemistry , geometry , materials science , mathematics
The self‐assemblies of octaruthenium grid‐type supramolecules, {[Ru 2 (CO) 4 (NH 2 C 16 H 33 ) 2 ](μ‐O 2 CCO 2 )} 4 , on highly oriented pyrolytic graphite (HOPG) in air and in 1‐phenyloctane were studied by scanning tunneling microscopy (STM). The surface supramolecules are arranged into rows in which the metal cores are linearly packed and the alkyl chains are parallel to the surface. With the aid of theoretical calculations in the framework of density functional theory, the electronic origin of the tunneling in the measured STM images is discussed. (© Wiley‐VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2007)