title: Silver(I) coordination polymers of fluorescent oligo(phenylenevinylene) with pi-pi stackings: luminescence and conductivity.
abstract: Three luminescent silver(I)-oligo(phenylenevinylene) complexes, [Ag2(bmsb)(ClO4)2] (1), [Ag2(bmsb)(H2O)4](BF4)2 (2), and [Ag2(bdb)(CF3SO3)2] (3) (bmsb = 1, 4-bis(methylstyryl)benzene, bdb = 4,4'-bis(2, 5-dimethylstryryl)biphenyl), have been synthesized and structurally characterized. Complexes 1 and 2 are 2D networks with unique metallocyclophane motifs. Complex 3 affords a 2D zigzag sheet, in which silver triflates form tubelike double chains and bdb molecules act as linkages. Complex 2 exhibits high electric conductivity because of columnar aromatic stackings formed through intra- and intermolecular pi-pi interactions. Complexes 1-3 in the solid state exhibit luminescence, of which excitation and emission maxima are shifted to longer wavelength as compared to those of the corresponding metal-free ligands.
authors.affiliation: Department of Chemistry, Kinki University, Higashi-Osaka, Osaka 577-8502, Japan.
authors.forename: Shu Qin
authors.initials: SQ
authors.lastname: Liu
authors.forename: Takayoshi
authors.initials: T
authors.lastname: Kuroda-Sowa
authors.forename: Hisashi
authors.initials: H
authors.lastname: Konaka
authors.forename: Yusaku
authors.initials: Y
authors.lastname: Suenaga
authors.forename: Masahiko
authors.initials: M
authors.lastname: Maekawa
authors.forename: Tomonari
authors.initials: T
authors.lastname: Mizutani
authors.forename: Gui Ling
authors.initials: GL
authors.lastname: Ning
authors.forename: Megumu
authors.initials: M
authors.lastname: Munakata