title: Synthesis of 5,10,15-triazaporphyrins--effect of benzo-annulation on the electronic structures.
abstract: Novel triazaporphyrins were synthesized using 1,9-dibromodipyrromethene as a key starting material. These triazaporphyrins exhibit comparatively intense Soret and Q bands in the UV/vis region due to their hybrid properties between porphyrins and phthalocyanines.
authors.affiliation: Department of Chemistry, Graduate School of Science, Tohoku University, Sendai 980-8578, Japan. ssoji@m.tohoku.ac.jp
authors.forename: Soji
authors.initials: S
authors.lastname: Shimizu
authors.forename: Yuki
authors.initials: Y
authors.lastname: Ito
authors.forename: Kazuaki
authors.initials: K
authors.lastname: Oniwa
authors.forename: Shoma
authors.initials: S
authors.lastname: Hirokawa
authors.forename: Yoshiaki
authors.initials: Y
authors.lastname: Miura
authors.forename: Osamu
authors.initials: O
authors.lastname: Matsushita
authors.forename: Nagao
authors.initials: N
authors.lastname: Kobayashi
mesh_terms: D018360:Crystallography, X-Ray; D003500:Cyclization; D004583:Electrons; D007211:Indoles / Q000737:chemistry; D054833:Isoindoles; D008968:Molecular Conformation; D011166:Porphyrins / Q000138:chemical synthesis* / Q000737:chemistry; D011789:Quantum Theory; D013056:Spectrophotometry, Ultraviolet
chemical_list: D007211:Indoles; D054833:Isoindoles; D011166:Porphyrins; C013647:phthalocyanine