Zobrazeno 1 - 10
of 53
pro vyhledávání: '"Yasuhiro Shigemitsu"'
Autor:
Kenichirou Yokota, Masayori Hagimori, Naoko Mizuyama, Yasuhisa Nishimura, Hiroshi Fujito, Yasuhiro Shigemitsu, Yoshinori Tominaga
Publikováno v:
Beilstein Journal of Organic Chemistry, Vol 8, Iss 1, Pp 266-274 (2012)
New fluorescent compounds, benzo[4,5]thieno[3,2-d]pyrimidine 5,5-dioxides (3a–g), 2-amino-4-methylsulfanylbenzo[4,5]thieno[3,2-d]pyrimidine (6), and 2-amino-4-methylsulfanyl-7-methoxybenzo[4,5]furo[3,2-d]pyrimidine (7), were synthesized in good yie
Externí odkaz:
https://doaj.org/article/76bba6f837e6410f8692d47f72306cfc
Publikováno v:
Journal of Heterocyclic Chemistry. Oct2023, Vol. 60 Issue 10, p1684-1698. 15p.
Autor:
Yasuhi Ohga, Yasuhiro Shigemitsu
Publikováno v:
Journal of Solution Chemistry. 49:902-914
A fundamental involvement of solvent fluctuations often arises in solution reactions, where the coupling between the solute structural change and solvent fluctuations plays a decisive role in reaction kinetics. In this study, the rate constants assoc
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::586ba2de475a27c9fb34f4c0130c1d6a
https://doi.org/10.1007/s10953-020-00986-0
https://doi.org/10.1007/s10953-020-00986-0
Autor:
Yasushi Ohga, Yasuhiro Shigemitsu
Publikováno v:
Journal of Solution Chemistry. 47:127-139
The dynamic solvent effect often arises in solution reactions, where coupling between chemical reaction and solvent fluctuation plays a decisive role in the reaction kinetics. In this study, the Z/E isomerization reaction of nitoroazobenzene and benz
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::805b6e77349855171868e842721ea5e0
https://doi.org/10.1007/s10953-018-0711-6
https://doi.org/10.1007/s10953-018-0711-6
Publikováno v:
Journal of Photochemistry and Photobiology A: Chemistry. 409:113140
The three newly synthesized imidazopyridine derivatives bearing inter/intramolecular hydrogen bond were computationally investigated. The quasi stable seven-membered ring systems of the compounds assisted by the intramolecular hydrogen bond exhibited
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::870388d17f1869fc29cecf2f081fc6ea
https://doi.org/10.1016/j.jphotochem.2021.113140
https://doi.org/10.1016/j.jphotochem.2021.113140
Publikováno v:
Dyes and Pigments. 171:107705
Two 2-pyridone tautomeric analogs, methoxypyridine 4 and N-methylpyridone 5, were synthesized, and their spectroscopic properties were investigated both experimentally and computationally. A detailed photophysical study reveals that 4 shows high fluo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::dae09f90b3d427572b86339d1ef8f1b6
https://doi.org/10.1016/j.dyepig.2019.107705
https://doi.org/10.1016/j.dyepig.2019.107705
Autor:
Masayori Hagimori, Yasuhisa Nishimura, Bo-Cheng Wang, Kenichirou Yokota, Ryousuke Satodani, Ho-Hsiang Wei, Ai Fukuda, Yasuhiro Shigemitsu, San-Lang Wang, Yoshinori Tominaga
Publikováno v:
Journal of Heterocyclic Chemistry. 53:414-420
New fluorescent compounds, 2-substituted indeno[1,2-d]pyrimidin-5-ones (3a, 3b, 3c, 3d) were synthesized in good yield by the reaction of 2-[bis(methylsulfanyl)methylene]indan-1,3-dione (1) with the respective amidine derivatives [guanidine carbonate
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::52da0977f470ba53f709b0120cc2321b
https://doi.org/10.1002/jhet.887
https://doi.org/10.1002/jhet.887
Autor:
Hiroyasu Sato, Yasuhiro Kubota, Yasuhiro Shigemitsu, Masaki Matsui, Siddanagouda Biradar, Kazumasa Funabiki
Publikováno v:
RSC Adv.. 4:59387-59396
The alkyl groups in 2-(dialkylamino)- and 2,7-bis(dialkylamino)perfluorophenazines drastically affected the melting point and solid-state fluorescence. 2-(Dialkylamino)- and 2,7-bis(dialkylamino) derivatives such as 2-(dioctylamino)-, 2-(didodecylami
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7d4121531658687988eceff5f5179935
https://doi.org/10.1039/c4ra09342a
https://doi.org/10.1039/c4ra09342a
Autor:
Yasushi Ohga, Yasuhiro Shigemitsu
Publikováno v:
Journal of Solution Chemistry. 43:1746-1754
The reaction rate in a condensed phase is retarded by solvent friction and deviates from the transition state theory (TST) in a highly viscous solvent. The Z/E isomerization kinetics of 4-dimethylamino-4′-nitroazobenzene in solution have been exper
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::09127552168342bf989414515a1e4a9b
https://doi.org/10.1007/s10953-014-0237-5
https://doi.org/10.1007/s10953-014-0237-5
Publikováno v:
Physical Chemistry Chemical Physics. 16(28):14388-14395
6-Cyano-2-(2′-hydroxyphenyl)imidazo[1,2-a]-pyridine (6CN-HPIP) shows polymorph-dependent luminescence with the three different crystal forms exhibiting the packing-controlled tuning of bright colors, orange, yellow, and red. The distinctive emissio
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3257ed4e57ae56946a77d839e091f22f
https://nagasaki-u.repo.nii.ac.jp/records/5622
https://nagasaki-u.repo.nii.ac.jp/records/5622