Chiral Steering of Molecular Organization in the Limit of Weak Adsorbate-Substrate Interactions: Enantiopure and Racemic Tartaric Acid Domains on Ag(111)

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Article on the chiral steering of molecular organization in the limit of weak adsorbate-substrate interactions.

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9 p.

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Santagata, Nancy M.; Lakhani, Amit M.; Davis, Bryce F.; Luo, Pengshun; Buongiorno Nardelli, Marco & Pearl, Thomas P. April 23, 2010.

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Article on the chiral steering of molecular organization in the limit of weak adsorbate-substrate interactions.

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9 p.

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Reprinted with permission from the Journal of Physical Chemistry C. Copyright 2010 American Chemical Society.

Abstract: The influence of intermolecular interactions involving molecular chiral centers on two-dimensional organization in the limit of a weak adsorbate-surface interaction has been studied with low-temperature scanning tunneling microscopy (STM) and density functional theory (DFT). A model system composed of a chiral organic molecule, tartaric acid, and an inert metallic surface, Ag(111), was employed. Dual component films formed from the serial deposition of (S,S)- and (R,R)-tartaric acid enantiomers onto this surface exhibit homochiral domain formation as revealed by molecularly resolved STM images. In contrast, a unique tartaric acid enantiomeric heteropair is experimentally and computationally verified as the basis unit of films formed via the deposition of both enantiomers simultaneously from a racemic (1:1) mixture. The molecular adsorption geometry relative to the Ag(111) lattice in both enantiomerically pure and racemic domains is determined primarily by the interaction of chiral centers between nearest neighbors.

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  • Journal of Physical Chemistry C, 2010, Washington DC: American Chemical Society, pp. 8917-8925

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  • Publication Title: Journal of Physical Chemistry C
  • Volume: 114
  • Issue: 19
  • Page Start: 8917
  • Page End: 8925
  • Peer Reviewed: Yes

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  • April 23, 2010

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  • Nov. 8, 2013, 8:29 a.m.

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  • May 12, 2014, 2:58 p.m.

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Santagata, Nancy M.; Lakhani, Amit M.; Davis, Bryce F.; Luo, Pengshun; Buongiorno Nardelli, Marco & Pearl, Thomas P. Chiral Steering of Molecular Organization in the Limit of Weak Adsorbate-Substrate Interactions: Enantiopure and Racemic Tartaric Acid Domains on Ag(111), article, April 23, 2010; [Washington, DC]. (digital.library.unt.edu/ark:/67531/metadc228317/: accessed October 21, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT College of Arts and Sciences.