Packing of Isophthalate Tetracarboxylic Acids on Au(111): Rows and Disordered Herringbone Structures
详细信息 查看全文
- 作者：Izabela Cebula ; Emily F. Smith ; Maria del Carmen Gimenez-Lopez ; Sihai Yang ; Martin Schr枚der ; Neil R. Champness ; Peter H. Beton
- 刊名：Journal of Physical Chemistry C
- 出版年：2013
- 出版时间：September 12, 2013
- 年：2013
- 卷：117
- 期：36
- 页码：18381-18385
- 全文大小：295K
- 年卷期：v.117,no.36(September 12, 2013)
- ISSN：1932-7455
文摘
Scanning tunnelling microscopy (STM) has been used to investigate the formation of hydrogen-bonded structures of the isophthalate tetracarboxylic acids, biphenyl-3,3鈥?5,5鈥?tetracarboxylic acid (BPTC), terphenyl-3,3鈥?5,5鈥?tetracarboxylic acid (TPTC), and quarterphenyl-3,3鈥?5,5鈥?tetracarboxylic acid (QPTC), via deposition from solution onto Au(111). STM data reveal that ordered structures can be formed from an aqueous solution leading to the formation of rows for the shortest acid BPTC, while the longer molecules TPTC and QPTC adopt a herringbone-like structure with significant degrees of disorder. The influence of solvent and substrate on the molecular ordering is discussed, and density functional theory is used to identify molecular models for these new phases.