title: Imaging the Predicted Isomerism of Oligo(aniline)s: A Scanning Tunneling Microscopy Study.
abstract: The self-assembly of two emeraldine base tetra(aniline) derivatives is investigated using scanning tunneling microscopy. A combination of the scanning tunneling microscopy data and calculations reveals the presence of predicted cis/trans isomerism in this oxidation state. This isomerism is shown to hinder self-assembly into ordered structures, and provides indications as to why the properties of these materials, and their parent polymer, polyaniline, remain unfulfilled.
authors: Bristol Centre for Functional Nanomaterials, Centre for NSQI, University of Bristol, Tyndall Avenue, BS8 1FD, UK.|H. H. Wills Physics Laboratory, University of Bristol, Tyndall Avenue, BS8 1TL, UK.
authors: James O
authors: JO
authors: Thomas
authors: H. H. Wills Physics Laboratory, University of Bristol, Tyndall Avenue, BS8 1TL, UK.
authors: Hugo D
authors: HD
authors: Andrade
authors: School of Chemistry, University of Bristol, Cantock's Close, BS8 1TS, UK.
authors: Benjamin M
authors: BM
authors: Mills
authors: H. H. Wills Physics Laboratory, University of Bristol, Tyndall Avenue, BS8 1TL, UK.
authors: Neil A
authors: NA
authors: Fox
authors: H. H. Wills Physics Laboratory, University of Bristol, Tyndall Avenue, BS8 1TL, UK.
authors: Heinrich J K
authors: HJ
authors: Hoerber
authors: School of Chemistry, University of Bristol, Cantock's Close, BS8 1TS, UK.
authors: Charl F J
authors: CF
authors: Faul
keywords: density functional calculations; isomers; oligomers; scanning tunneling microscopy; thin films