Manipulating double-decker molecules at the liquid-solid interface
Takami, Tomohide, Ye, Tao, Pathem, Bala K., Arnold, Dennis P., Sugiura, Ken-ichi, Biang, Yongzhong, Jiang, Jianzhuang, & Weiss, Paul S. (2010) Manipulating double-decker molecules at the liquid-solid interface. Journal of the American Chemical Society, 132(46), pp. 16460-16466.
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We have used a scanning tunneling microscope to manipulate heteroleptic phthalocyaninato, naphthalocyaninato, porphyrinato double-decker molecules at the liquid/solid interface between 1-phenyloctane solvent and graphite. We employed nano-grafting of phthalocyanines with eight octyl chains to place these molecules into a matrix of heteroleptic double-decker molecules; the overlayer structure is epitaxial on graphite. We have also used nano-grafting to place double-decker molecules in matrices of single-layer phthalocyanines with octyl chains. Rectangular scans with a scanning tunneling microscope at low bias voltage resulted in the removal of the adsorbed doubledecker molecular layer and substituted the double-decker molecules with bilayer-stacked phthalocyanines from phenyloctane solution. Single heteroleptic double-decker molecules with lutetium sandwiched between naphthalocyanine and octaethylporphyrin were decomposed with voltage pulses from the probe tip; the top octaethylporphyrin ligand was removed and the bottom naphthalocyanine ligand remained on the surface. A domain of decomposed molecules was formed within the double-decker molecular domain, and the boundary of the decomposed molecular domain self-cured to become rectangular. We demonstrated a molecular “sliding block puzzle” with cascades of double-decker molecules on the graphite surface.
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|Item Type:||Journal Article|
|Additional Information:||This article is freely available from the American Chemical Society website 12 months after the publication date. See links to publisher website in this record.|
|Keywords:||scanning tunneling microscopy, porphyrins, phthalocyanines, double-decker, molecular manipulation|
|Subjects:||Australian and New Zealand Standard Research Classification > CHEMICAL SCIENCE (030000) > PHYSICAL CHEMISTRY (INCL. STRUCTURAL) (030600)|
|Divisions:||Past > Schools > Chemistry|
|Copyright Owner:||Copyright 2010 American Chemical Society|
|Deposited On:||24 Feb 2011 22:09|
|Last Modified:||29 Feb 2012 14:28|
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