title: Pyridine-capped, oligomeric (o-phenyleneethynylene)s.
abstract: The synthesis, optical properties, and solid-state structures of a series of o-(aryleneethynylene) oligomers containing three to seven aryl units is described. The main chain in all examples is composed of between one and five 4,5-dimethoxybenzene rings which are capped on each end by 2-pyridyl rings. These oligomers demonstrate pH-dependent emission and absorption spectra. Single crystals were obtained from the aryleneethynylenes containing three to five arene rings. These single crystals were investigated by X-ray diffraction.
authors.affiliation: School of Chemistry and Biochemistry, Georgia Institute of Technology, Atlanta, Georgia 30332, USA.
authors.forename: Sandra
authors.initials: S
authors.lastname: Shotwell
authors.forename: Paul M
authors.initials: PM
authors.lastname: Windscheif
authors.forename: Mark D
authors.initials: MD
authors.lastname: Smith
authors.forename: Uwe H F
authors.initials: UH
authors.lastname: Bunz