Display options
Cite
Tahara K, Kaneko K, Katayama K, et al. Formation of Multicomponent Star Structures at the Liquid/Solid Interface. Langmuir. 2015;31(25):7032-40doi: 10.1021/acs.langmuir.5b01507.
Tahara, K., Kaneko, K., Katayama, K., Itano, S., Nguyen, C. H., Amorim, D. D., De Feyter, S., & Tobe, Y. (2015). Formation of Multicomponent Star Structures at the Liquid/Solid Interface. Langmuir : the ACS journal of surfaces and colloids, 31(25), 7032-40. https://doi.org/10.1021/acs.langmuir.5b01507
Tahara, Kazukuni, et al. "Formation of Multicomponent Star Structures at the Liquid/Solid Interface." Langmuir : the ACS journal of surfaces and colloids vol. 31,25 (2015): 7032-40. doi: https://doi.org/10.1021/acs.langmuir.5b01507
Tahara K, Kaneko K, Katayama K, Itano S, Nguyen CH, Amorim DD, De Feyter S, Tobe Y. Formation of Multicomponent Star Structures at the Liquid/Solid Interface. Langmuir. 2015 Jun 30;31(25):7032-40. doi: 10.1021/acs.langmuir.5b01507. Epub 2015 Jun 19. PMID: 26061362.
Copy Download .nbib Format: NLM
Share it on

Langmuir. 2015 Jun 30;31(25):7032-40. doi: 10.1021/acs.langmuir.5b01507. Epub 2015 Jun 19.

Formation of Multicomponent Star Structures at the Liquid/Solid Interface.

Langmuir : the ACS journal of surfaces and colloids

Kazukuni Tahara, Kyohei Kaneko, Keisuke Katayama, Shintaro Itano, Chi Huan Nguyen, Deborah D D Amorim, Steven De Feyter, Yoshito Tobe

Affiliations

  1. †Division of Frontier Materials Science, Graduate School of Engineering Science, Osaka University, Toyonaka, Osaka 560-8531, Japan.
  2. ‡Division of Molecular Imaging and Photonics, Department of Chemistry, KU Leuven, Celestijnenlaan 200 F, 3001 Leuven, Belgium.

PMID: 26061362 DOI: 10.1021/acs.langmuir.5b01507

Abstract

To demonstrate key roles of multiple interactions between multiple components and multiple phases in the formation of an uncommon self-assembling pattern, we present here the construction of a porous hexagonal star (h-star) structure using a trigonal molecular building block at the liquid/solid interface. For this purpose, self-assembly of hexaalkoxy-substituted dehydrobenzo[12]annulene derivatives DBA-OCns was investigated at the tetradecane/graphite interface by means of scanning tunneling microscopy (STM). Monolayer structures were significantly influenced by coadsorbed tetradecane molecules depending on the alkyl chains length (C13-C16) of DBA-OCn. However, none of DBA-OCn molecules formed the expected trigonal complexes, indicating that an additional driving force is necessary for the formation of the trigonal complex and its assembly into the h-star structure. As a first approach, we employed the "guest induced structural change" for the formation of the h-star structure. In the presence of two guest molecules, nonsubstituted DBA and hexakis(phenylethynyl)benzene which fit the respective pores, an h-star structure was formed by DBA-OC15 at the tetradecane/graphite interface. Moreover, a tetradecane molecule was coadsorbed between a pair of alkyl chains of DBA-OC15, thereby blocking the interdigitation of the alkyl chain pairs. Therefore, the h-star structure results from the self-assembly of the four molecular components including the solvent molecule. The second approach is based on aggregation of perfluoroalkyl chains via fluorophilicity of DBA-F, in which the perfluoroalkyl groups are substituted at the end of three alkyl chains of DBA-OCn via p-phenylene linkers. A trigonal complex consisting of DBA-F and three tetradecane molecules formed an h-star structure, in which the perfluoroalkyl groups that orient into the alkane solution phase aggregated at the hexagonal pore via fluorophilicity. The present result provides useful insight into the design and control of complex molecular self-assembly at the liquid/solid interface.

Publication Types