| Autor: |
Chao Lu, Yinying Wei, Erkuang Zhu, Reutt-Robey, Janice E., Bo Xu |
| Předmět: |
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| Zdroj: |
International Journal of Molecular Sciences; Jun2012, Vol. 13 Issue 6, p6836-6848, 15p |
| Abstrakt: |
Surface self-assembly process of 9-anthracene carboxylic acid (AnCA) on Ag(111) was investigated using STM. Depending on the molecular surface density, four spontaneously formed and one annealed AnCA ordered phases were observed, namely a straight belt phase, a zigzag double-belt phase, two simpler dimer phases, and a kagome phase. The two high-density belt phases possess large unit cells on the scale length of 10 nm, which are seldom observed in molecular self-assembled structures. This structural diversity stems from a complicated competition of different interactions of AnCA molecules on metal surface, including intermolecular and molecular-substrate interactions, as well as the steric demand from high molecular surface density. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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