Zobrazeno 1 - 8
of 8
pro vyhledávání: '"Ryusuke Hagihara"'
Autor:
Junko Hirota, Yasufumi Fuchi, Shota Matsumoto, Satoru Karasawa, Ryusuke Hagihara, Kazuteru Usui, Masaomi Sakuma
Publikováno v:
Chemistry – A European Journal. 25:14943-14952
Water-soluble donor-acceptor-type fluorophore 15Nap-Cl having two trifluoromethyl groups and a Cl group on a 1,5-aminonaphthyridine framework was prepared. Fluorophore 15Nap-Cl showed strong solvatochromic fluorescence, and, as the solvent polarity i
Autor:
Shoji Ueki, Tomohiro Umeno, Yasufumi Fuchi, Daisuke Yoshihara, Kazuteru Usui, Ken Ichi Yamada, Satoru Karasawa, Masaomi Sakuma, Ryusuke Hagihara
Publikováno v:
Chemistry (Weinheim an der Bergstrasse, Germany). 27(9)
Emissive push-pull-type bisnaphthyridylamine derivatives (BNA-X: X=Me, Et, Bzl, Ph, BuBr, and BuTEMPO) aggregate in aqueous methanol. Furthermore, a two-step emission and aggregation process is controllable by varying the methanol-to-water ratio. At
Autor:
Ryusuke Hagihara, Satoru Karasawa, Kosuke Yamamoto, Go Hirai, Akio Ojida, Kazuteru Usui, Toshinobu Masuda, Hiroshi Suemune, Yuhei Ueno, Kazunobu Igawa, Katsuhiko Tomooka
Publikováno v:
Chemistry - A European Journal. 24:14617-14621
π-Conjugated helicenes containing heteroatoms have attracted significant attention due to their diverse chemical and electronic structures, as well as tunable physical properties. It was rationally anticipated that the self-assembly of coumarin-fuse
Publikováno v:
Dyes and Pigments. 143:401-408
Six (pseudo)polymorphs (1α, 1β, 2α, 2β, 3, and 4) of an emissive quinoline derivative, TFMAQ-Ph-OMe, were demonstrated to undergo a two-step transformation caused by conformation- and packing-dominated processes, as indicated by changes of the co
Autor:
Masaomi Sakuma, Minaki Kohno, Satoru Karasawa, Koichi Hamada, Kohei Ohyama, Akihiro Mizutani, Yasufumi Fuchi, Ryusuke Hagihara
Publikováno v:
Scientific Reports
Scientific Reports, Vol 9, Iss 1, Pp 1-9 (2019)
Scientific Reports, Vol 9, Iss 1, Pp 1-9 (2019)
Push-pull type fluorescent amino-quinoline derivatives (TFMAQ) bearing phenyl aromatic groups in the 8-position (TFMAQ-8Ar series) were synthesized via palladium-catalyzed C-H activation reaction in short steps. The N-arylation or C-H activation reac
Autor:
Kazuteru Usui, Shoji Ueki, Ken Ichi Yamada, Satoru Karasawa, Daisuke Yoshihara, Masaomi Sakuma, Ryusuke Hagihara, Yasufumi Fuchi, Tomohiro Umeno
Publikováno v:
Chemistry – A European Journal. 27:2885-2885
Publikováno v:
CrystEngComm. 17:8825-8834
Dinaphthyridinylamine derivatives, (1,8Nap)2NR (R = H (1), Me (2) and Ph (3)), were prepared as fluorophores in response to external stimuli. From crystallization, single crystals (1) containing water molecules as crystal solvents and crystal polymor
Publikováno v:
Crystal Growth & Design. 14:2468-2478
N,N-R-Phenyl-7-amino-2,4-trifluoromethylquinoline derivatives (R = Me (1), Et (2), isopropyl (3), and Ph (4)) were prepared as a new type of fluorophore responsive to external stimuli. 1, 2, 3, and 4 were obtained as single crystals including three c