Effects of pore modification on the templating of guest molecules in a 2D honeycomb network
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1,7-Diadamantanethioperylene-3,4:9,10-tetracarboxylic diimide, (Ad-S)(2)-PTCDI, adsorbed on Au (111) from solution was investigated by scanning tunneling microscopy (STM) and X-ray photoelectron spectroscopy (XPS). (Ad-S)(2)-PTCDI forms a well-ordered monolayer whose structure is described by a (2 root 63 x root 19) R19.1 degrees chiral unit cell containing four molecules. Codeposition of (Ad-S)(2)-PTCDI with 1,3,5-triazine-2,4,6-triamine (melamine) yields a honeycomb network whose (7 root 3 x 7 root 3)R30 degrees unit cell is identical to the unsubstituted PTCDI/melamine analogue. The effect of the adamantyl thioether moieties on the adsorption of guest molecules is investigated using adamantane thiol and C-60. While the thioether units do not affect the packing of adamantane thiol molecules a pronounced influence is seen in the case of fullerene. Pore modification involving different combinations of enantiomers of (Ad-S)(2)-PTCDI give rise to distinctly different arrangements of C-60 molecules. The diversity of patterns is further increased by the presence of unsubstituted PTCDI molecules.
Raeisaenen , M T , Slater (nee Phillips) , A G , Champness , N R & Buck , M 2012 , ' Effects of pore modification on the templating of guest molecules in a 2D honeycomb network ' Chemical Science , vol. 3 , no. 1 , pp. 84-92 . DOI: 10.1039/c1sc00543j
This is the accepted version of this article. The published version is available in Chemical Science, (c) The Royal Society of Chemistry
DescriptionThis work was supported by the UK Engineering Physical Sciences Research Council (EPRSC) and the EU.
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