@article{santagata_lakhani_davis_luo_nardelli_pearl_2010, title={Chiral Steering of Molecular Organization in the Limit of Weak Adsorbate-Substrate Interactions: Enantiopure and Racemic Tartaric Acid Domains on Ag(111)}, volume={114}, ISSN={["1932-7447"]}, DOI={10.1021/jp912124v}, abstractNote={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.}, number={19}, journal={JOURNAL OF PHYSICAL CHEMISTRY C}, author={Santagata, Nancy M. and Lakhani, Amit M. and Davis, Bryce F. and Luo, Pengshun and Nardelli, Marco Buongiorno and Pearl, Thomas P.}, year={2010}, month={May}, pages={8917–8925} }