Engineering porous and compact two-dimensional nanoarchitectures on surfaces taking advantage of bisterpyridine-derivatives self-assembly. Issue 123 (26th November 2015)

• Record Type: Journal Article
• Authors: Silly, Fabien; Kervella, Yann; Jousselme, Bruno
• Is Part Of: RSC advances. Volume 5:Issue 123(2015)
• Page Start: 101740
• Page End: 101744
• Publication Date: 2015-11-26
• Subjects: Chemistry -- Periodicals; 540.5
• DOI: 10.1039/c5ra22117j
• Languages: English
• ISSNs: 2046-2069

Abstract

Abstract : The self-assembly of bis-terpyridine molecules is investigated using STM. Images reveal that close-packed as well as porous two-dimensional nanoarchitectures can be engineered by changing the molecular backbone separating the terpyridine groups. Abstract : The self-assembly of two bis-terpyridine derivatives is experimentally investigated at the nanometer scale. Scanning tunneling microscopy (STM) reveals that two-dimensional compact and porous nanoarchitectures can be engineered by changing the length of terpyridine spacer; i.e. a benzene ring or a quaterthiophene (4T) unit. In both cases the molecular nanoarchitecture appears to be stabilized by double hydrogen-bonds between molecular terpyridine groups. The STM images suggest however that terpyridine groups adopt different conformations, s- cis and s- trans as well as s- trans and s- trans conformations, in the two self-assembled organic layers.