title: Synthesis and charge-transfer dynamics in a ferrocene-containing organoboryl aza-BODIPY donor-acceptor triad with boron as the hub.
abstract: A N,N'-bis(ferroceneacetylene)boryl complex of 3,3'-diphenylazadiisoindolylmethene was synthesized by the reaction of an N,N'-difluoroboryl complex of 3,3'-diphenylazadiisoindolylmethene and ferroceneacetylene magnesium bromide. The novel diiron complex was characterized by a variety of spectroscopic techniques, electrochemistry, and ultrafast time-resolved methods. Spectroscopy and redox behavior was correlated with the density functional theory (DFT) and time-dependent DFT calculations. An unexpected degree of coupling between the two Fc ligands was observed. Despite a lack of conjugation between the donor and acceptor, the complex undergoes very rapid (τ = 1.7 ± 0.1 ps) photoinduced intramolecular charge separation followed by subpicosecond charge recombination to form a triplet state with a lifetime of 4.8 ± 0.1 μs.
authors.affiliation: †Department of Chemistry and Biochemistry, University of Minnesota-Duluth, 1039 University Drive, Duluth, Minnesota 55812, United States.
authors.forename: Eranda
authors.initials: E
authors.lastname: Maligaspe
authors.affiliation: §Department of Chemistry, University of Minnesota, 207 Pleasant Street SE, Minneapolis, Minnesota 55455, United States.
authors.forename: Tom J
authors.initials: TJ
authors.lastname: Pundsack
authors.affiliation: §Department of Chemistry, University of Minnesota, 207 Pleasant Street SE, Minneapolis, Minnesota 55455, United States.
authors.forename: Lauren M
authors.initials: LM
authors.lastname: Albert
authors.affiliation: †Department of Chemistry and Biochemistry, University of Minnesota-Duluth, 1039 University Drive, Duluth, Minnesota 55812, United States.
authors.forename: Yuriy V
authors.initials: YV
authors.lastname: Zatsikha
authors.affiliation: †Department of Chemistry and Biochemistry, University of Minnesota-Duluth, 1039 University Drive, Duluth, Minnesota 55812, United States.|§Department of Chemistry, University of Minnesota, 207 Pleasant Street SE, Minneapolis, Minnesota 55455, United States.
authors.forename: Pavlo V
authors.initials: PV
authors.lastname: Solntsev
authors.affiliation: §Department of Chemistry, University of Minnesota, 207 Pleasant Street SE, Minneapolis, Minnesota 55455, United States.
authors.forename: David A
authors.initials: DA
authors.lastname: Blank
authors.affiliation: †Department of Chemistry and Biochemistry, University of Minnesota-Duluth, 1039 University Drive, Duluth, Minnesota 55812, United States.
authors.forename: Victor N
authors.initials: VN
authors.lastname: Nemykin