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Investigation of The Self-Assembly of Chiral Molecules At Liquidsolid Interfaces Using Scanning Tunneling Microscopy Chemical Marker Groups: Driving Forces for 2-D Separation of Chiral Species

Published online by Cambridge University Press:  02 July 2020

Dalia Yablon  and
George Flynn
Dalia Yablon
Affiliation:
Department of Chemistry and Columbia Radiation Laboratory, Columbia University, New York, NY, 10027
George Flynn
Affiliation:
Department of Chemistry and Columbia Radiation Laboratory, Columbia University, New York, NY, 10027
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Abstract

Self-assembly of molecules on surfaces is fundamentally a process whereby individual molecules, separated in the gas or liquid phase, fonn ordered arrays on a surface. The driving forces for these self-assembly processes are the attractive and repulsive interactions among the molecules themselves and between the molecular assemblies and the surface. Since physisorption causes minimal perturbation of chemical bonds, studies of physisorbed species provide an extremely convenient method for investigating issues of molecular structure, conformation, orientation and dynamics of molecules in their “natural” state. The two dimensional nature of the interface introduces constraints that can be used advantageously to separate and identify novel structures.

Control and manipulation of self assembly and molecular conformation is one of the key issues often cited in efforts to develop nanotechnology initiatives for the next generation of electrical and mechanical devices. The development of molecular electronic devices based solely on organic materials will also require careful control and manipulation of molecular assemblies as well as the conformations and orientations of the molecules and functional groups within these arrays.

Type
Can Scanning Probe Microscopes Do Microanalysis?(Organized by I. Holl Musselman)
Information
Microscopy and Microanalysis , Volume 7 , Issue S2: Proceedings: Microscopy & Microanalysis 2001, Microscopy Society of America 59th Annual Meeting, Microbeam Analysis Society 35th Annual Meeting, Long Beach, California August 5-9, 2001 , August 2001 , pp. 848 - 849
Copyright
Copyright © Microscopy Society of America 2001

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References

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5.Yablon, Dalia G., Guo, Jinsong, Knapp, David, Fang, Hongbin, and Flynn, George W., “Scanning Tunneling Microscopy Investigation of a Chirally Pure Molecule at the Liquidsolid Interface: Unambiguous Topographic Markers”, J. Phys. Chem., submittedGoogle Scholar
6.This work was supported by grants from the National Science Foundation (CHE-97-27205, CHE-00-95649) and in part by the Columbia MRSEC program (NSF DMR-98-09687).Google Scholar