title: Electronic coupling between two cyclometalated ruthenium centers bridged by 1,3,6,8-tetra(2-pyridyl)pyrene (tppyr).
abstract: A new cyclometalating bridging ligand 1,3,6,8-tetra(2-pyridyl)pyrene was designed and synthesized through 4-fold Suzuki couplings between 1,3,6,8-tetrabromopyrene and 2-pyridylboronate. A bis-cyclometalated bisruthenium complex bridged by this ligand showed the presence of an electronic coupling between individual metal centers, as indicated by electrochemical and spectroscopic studies.
authors.affiliation: Beijing National Laboratory for Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, PR China.
authors.forename: Chang-Jiang
authors.initials: CJ
authors.lastname: Yao
authors.forename: Long-Zhen
authors.initials: LZ
authors.lastname: Sui
authors.forename: Hai-Yan
authors.initials: HY
authors.lastname: Xie
authors.forename: Wen-Jing
authors.initials: WJ
authors.lastname: Xiao
authors.forename: Yu-Wu
authors.initials: YW
authors.lastname: Zhong
authors.forename: Jiannian
authors.initials: J
authors.lastname: Yao