title: Synthesis and Chiroptical Properties of a Ring-Fused BODIPY with a Skewed Chiral π Skeleton.
abstract: A twisted chiral boron-dipyrrin complex (BODIPY) was synthesized by oxidative annulation of the biphenyl units at the β positions. The chiral BODIPY has two asymmetric carbons in the large planar skeleton, which were generated upon the ring-fused reaction. Its π-elongated and twisted structure resulted in the Cotton effect in the red region (λmax = 614 nm, Δε = 60 M(-1)·cm(-1)) as well as the strong fluorescence (ΦF = 0.73) and circularly polarized luminescence (CPL).
authors.affiliation: Graduated School of Pure and Applied Science and Tsukuba Research Center for Interdisciplinary Materials Science (TIMS), University of Tsukuba , 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8571, Japan.
authors.forename: Yuki
authors.initials: Y
authors.lastname: Gobo
authors.affiliation: Graduated School of Pure and Applied Science and Tsukuba Research Center for Interdisciplinary Materials Science (TIMS), University of Tsukuba , 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8571, Japan.
authors.forename: Masaki
authors.initials: M
authors.lastname: Yamamura
authors.affiliation: Graduated School of Pure and Applied Science and Tsukuba Research Center for Interdisciplinary Materials Science (TIMS), University of Tsukuba , 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8571, Japan.
authors.forename: Takashi
authors.initials: T
authors.lastname: Nakamura
authors.affiliation: Graduated School of Pure and Applied Science and Tsukuba Research Center for Interdisciplinary Materials Science (TIMS), University of Tsukuba , 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8571, Japan.
authors.forename: Tatsuya
authors.initials: T
authors.lastname: Nabeshima