| AVS 54th International Symposium | |
| Surface Science | Thursday Sessions |
| Session SS-ThP |
| Session: | Surface Science Poster Session |
| Presenter: | C. Reinhart, Western Washington University |
| Authors: | C. Reinhart, Western Washington University A. Morris-Cohen, Western Washington University D.L. Patrick, Western Washington University |
| Correspondent: | Click to Email |
Many important chemical and physical properties of organic thin films are affected by molecular-scale order. We present investigations of a method for controlling the orientation of molecules and their chirality in monolayer films using thermotropic liquid crystal (LC) solvents and magnetic fields. Two different methods of chiral and orientational control will be discussed. The first involves an achiral set of organic compounds that, when deposited on a graphite surface, produce crystalline monolayers with non-superimposable left and right handed domains; the second set involves 3-dimensionally chiral compounds and is aimed at controlling enantiomeric excess through selective adsorption. Molecular ordering, 2D chirality and enantiomeric excess are analyzed by scanning tunneling microscopy.