Zobrazeno 1 - 10 of 73 pro vyhledávání: '"Kazuteru Usui"'
1
Akademický článek
A multicolor and ratiometric fluorescent sensing platform for metal ions based on arene–metal-ion contact
Autor: Anna Kanegae, Yusuke Takata, Ippei Takashima, Shohei Uchinomiya, Ryosuke Kawagoe, Kazuteru Usui, Akira Yamashita, Jirarut Wongkongkatep, Manabu Sugimoto, Akio Ojida
Publikováno v: Communications Chemistry, Vol 4, Iss 1, Pp 1-10 (2021)
Fluorescent probes can detect metal ions with high sensitivity, but their design typically relies on a limited number of sensing mechanisms. Here the use of arene–metal-ion contact as a sensing mechanism allows ratiometric detection of metal ions a
Externí odkaz: https://doaj.org/article/49bd02f95c984c689484bdfbd4d0d68c
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3
Akademický článek
10,10'-Dimethoxy-9,9'-biazuleno[2,1-c]phenanthrene
Autor: Kosuke Yamamoto, Ryota Nakamae, Hiroshi Suemune, Kazuteru Usui
Publikováno v: Molbank, Vol 2015, Iss 1, p M843 (2015)
The title compound was prepared by the regioselective homocoupling of 10-methoxyazuleno[2,1-c]phenanthrene in the presence of ammonium persulfate. The structure of the synthesized compound was assigned on the basis of its 1H-NMR, FT-IR, and mass spec
Externí odkaz: https://doaj.org/article/d2afc041c01e4c5db215c7a9eb445861
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6
Chelate-free 'turn-on'-type fluorescence detection of trivalent metal ions
Autor: Shota Matsumoto, Tomohiro Umeno, Noriko Suzuki, Kazuteru Usui, Masatoshi Kawahata, Satoru Karasawa
Publikováno v: Chemical Communications. 58:12435-12438
Trivalent metal ions are essential elements in materials and life sciences. To date, fluorescence is the gold standard for the detection of trivalent metal ions, which form a complex with fluorescent chelate ligands (Lewis base type). In this study,
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ee1e6725bb79028fc0351480e60bd22b
https://doi.org/10.1039/d2cc04815a
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7
Helical Oligophenylene Linked with [2.2]Paracyclophane: Stereogenic π‐Conjugated Dye for Highly Emissive Chiroptical Properties
Autor: Hiroaki Sasaki, Yuki Ishida, Nobuyuki Hara, Maho Kitahara, Masashi Hasegawa, Yoshitane Imai, Yasuhiro Mazaki, Kazuteru Usui, Sumire Ishioka
Publikováno v: Chemistry – A European Journal. 27:16225-16231
A stereogenic π-system based on dimer (2) and trimer (3) of [2.2]paracyclophane (PC) and biphenyl was prepared and its structural, photophysical, and chiroptical properties were investigated. X-ray analysis revealed that the quaterphenyl moieties in
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7cbe8e18557a7f063bec4ce0d8ae5e5c
https://doi.org/10.1002/chem.202103158
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9
Oxidation of an Internal‐Edge‐Substituted [5]Helicene‐Derived Phosphine Synchronously Enhances Circularly Polarized Luminescence
Autor: Kazuteru Usui, Nozomi Narita, Ryosuke Eto, Seika Suzuki, Atsushi Yokoo, Kosuke Yamamoto, Kazunobu Igawa, Naoko Iizuka, Yuki Mimura, Tomohiro Umeno, Shota Matsumoto, Masashi Hasegawa, Katsuhiko Tomooka, Yoshitane Imai, Satoru Karasawa
Publikováno v: Chemistry – A European Journal. 28
Small chiral organic molecules with CD properties are in high demanded due to their potential use in promising electronic and biological applications. Herein, we reveal a system in which the oxidation of a phosphino group to the corresponding phosphi
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::91221a5b04872a3722af10c27c21d3b7
https://doi.org/10.1002/chem.202202922
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