Two-dimensional assemblies of banana-shaped liquid crystal molecules with short alkyl chains at solid/liquid interface
| Autor: | Yanlian Yang, Rahman Ml, Wang C, Li Y, Jahimin Asik, Fan X |
|---|---|
| Rok vydání: | 2009 |
| Předmět: |
chemistry.chemical_classification
Materials science Biomedical Engineering Bioengineering Nanotechnology General Chemistry Condensed Matter Physics law.invention Solvent Crystallography symbols.namesake chemistry Liquid crystal law symbols Molecule General Materials Science Graphite van der Waals force Scanning tunneling microscope Solid liquid Alkyl |
| Zdroj: | Journal of nanoscience and nanotechnology. 9(2) |
| ISSN: | 1533-4880 |
| Popis: | Two-dimensional assemblies of a series of banana-shaped liquid crystal molecules with short alkyl chains, (LC, n = 5, 6), are investigated at the solid/liquid interface on graphite surface by using scanning tunneling microscopy (STM) under ambient conditions. The high-resolution STM images of the LC0 assemblies demonstrated a lamel)ae structure with bright bands and dark stripes, in which the alkyl chains of neighboring rows were either interdigitated or tail-to-tail due to the van der Waals interactions. The results in this paper are different with other reported banana-shaped liquid crystals, in which the core may play a dominant role in the self-assembly and the solvent molecules may also play a role in the assemblies. It may be helpful in understanding the assembly mechanism of banana-shaped liquid crystal molecules. Copyright © 2009 American Scientific Publishers All rights reserved. |
| Databáze: | OpenAIRE |
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