title: Electroabsorption spectra of directly linked tribenzotetraazachlorin-fullerene conjugates having either electron donating or withdrawing substituents in a polymer film.
abstract: Electroabsorption spectra of electron donating butyloxy- (OBu) or electron withdrawing butylsulfonyl (SO(2)Bu)-substituted tribenzotetraazachlorin (TBTAC)-C(60) conjugates (1 and 2, respectively) have demonstrated that significant change of the molecular polarizability is associated with the photoexcitation of 1 in the lower energy region, while that in the higher energy region is comparable with the corresponding band of 2, although the pi-aromatic structures of 1 and 2 are identical to each other, being consistent with the previously reported result of the DFT calculations.
authors.affiliation: Department of Chemistry, Graduate School of Science, Tohoku University, Sendai, 980-8578, Japan.
authors.forename: Takamitsu
authors.initials: T
authors.lastname: Fukuda
authors.forename: Satoshi
authors.initials: S
authors.lastname: Masuda
authors.forename: Md
authors.initials: M
authors.lastname: Wahadoszamen
authors.forename: Nobuhiro
authors.initials: N
authors.lastname: Ohta
authors.forename: Nagao
authors.initials: N
authors.lastname: Kobayashi
mesh_terms: D001372:Aza Compounds / Q000737:chemistry*; D004583:Electrons; D037741:Fullerenes / Q000737:chemistry*; D008567:Membranes, Artificial; D009942:Organometallic Compounds / Q000737:chemistry*; D011108:Polymers / Q000737:chemistry*; D013056:Spectrophotometry, Ultraviolet
chemical_list: D001372:Aza Compounds; D037741:Fullerenes; D008567:Membranes, Artificial; D009942:Organometallic Compounds; D011108:Polymers