Zobrazeno 1 - 10
of 15
pro vyhledávání: '"Yutaka Hyodo"'
Autor:
Takaaki Uno, Hiroyuki Etoh, Christa L. Colyer, Yutaka Hyodo, Shigeyuki Yagi, Taishi Ohta, Hiroyuki Nakazumi
Publikováno v:
Synthetic Metals. 153:33-36
Novel bis-squaraine fluorophores with near-infrared emissions have been synthesized, in which two squaraine moieties are conjugatively linked by a thiophene, oligothiophene or pyrene spacer. Bis-squaraine dyes linked by a monothiophenc or pyrene spac
Publikováno v:
Dyes and Pigments. 54:163-171
The squarylium (SQ) dimer 1 bearing a ferrocene spacer was synthesized, and its electronic absorption and fluorescence properties were investigated. The dimer 1a , in which the ferrocene moiety and each SQ chromophore are separated by an ethylenoxyca
Publikováno v:
Synthesis. 2002:413-417
Novel cationic bisquarylium dyes 3 and 4 were prepared by the reaction of benzothiazolinosquarylium dye 2 with a series of 4-substituted 3-hydroxy or 3-ethoxycyclobut-3-ene-1,2-diones. These dyes exhibit large and intenseabsorptions in the near-infra
Publikováno v:
Journal of the Chemical Society, Perkin Transactions 1. :2823-2830
In order to investigate analogous structures of 1,2-squaraine dyes, bisquaraines 1 and 2 are newly prepared as their novel homologues. Symmetrical bisquaraine dye 1, in which the same heterocyclic components are introduced at the 3 and 3′ positions
Autor:
Hiroyuki Nakazumi, Hiroshi Kono, Yutaka Hyodo, Shigeyuki Yagi, Shinya Matsumoto, Naoki Takahashi
Publikováno v:
Journal of the Chemical Society, Perkin Transactions 1. :599-604
Novel unsymmetrical squarylium dyes which absorb in the near-infrared region were synthesized by a stepwise procedure via intermediate 4-substituted 3-hydroxycyclobut-3-ene-1,2-diones. By introducing benz[c,d]indoline or benzo[b]pyran moieties at one
Autor:
Msahiko Hirose, Yoshihiko Fujie, Yutaka Hyodo, Shigeyuki Yagi, Hiroyuki Nakazumi, Shin Murayama
Publikováno v:
Journal of the Chemical Society, Perkin Transactions 1. :1417-1419
Novel symmetrical bis-squaraine dyes have been synthesised, in which two squaryl moieties are conjugatively linked by a phenylene or biphenyl unit. Such linkages produce significant perturbation of the absorption and fluorescence spectra in compariso
Autor:
Hiroshi Kono, Hiroyuki Nakazumi, Naoki Takahashi, Shinya Matsumoto, Yutaka Hyodo, Shigeyuki Yagi
Publikováno v:
ChemInform. 31
Novel unsymmetrical squarylium dyes which absorb in the near-infrared region were synthesized by a stepwise procedure via intermediate 4-substituted 3-hydroxycyclobut-3-ene-1,2-diones. By introducing benz[c,d]indoline or benzo[b]pyran moieties at one
Publikováno v:
ChemInform. 33
In order to investigate analogous structures of 1,2-squaraine dyes, bisquaraines 1 and 2 are newly prepared as their novel homologues. Symmetrical bisquaraine dye 1, in which the same heterocyclic components are introduced at the 3 and 3′ positions
Autor:
Msahiko Hirose, Yutaka Hyodo, Yoshihiko Fujie, Hiroyuki Nakazumi, Shin Murayama, Shigeyuki Yagi
Publikováno v:
ChemInform. 33
Novel symmetrical bis-squaraine dyes have been synthesised, in which two squaryl moieties are conjugatively linked by a phenylene or biphenyl unit. Such linkages produce significant perturbation of the absorption and fluorescence spectra in compariso
Autor:
Shigeyuki Yagi, Ayyappanpillai Ajayaghosh, Masahiko Hirose, Yutaka Hyodo, Hiroyuki Nakazumi, Yoshiaki Sakurai
Publikováno v:
Organic letters. 9(10)
Alkyl chain tethered bis-squaraines bind to Ca2+ ions through the participation of the negatively charged oxygen of the central cyclobutene moiety to form folded H-type aggregates. The initially formed Ca2+ complex is preorganized to facilitate coope