Highly emissive tridentate fluorophores based on bis-imidazo [1, 2-α] pyridine for deep-blue photoluminescence with CIE y≤ 0.08

X Ren, W Wang, Z Meng, Y Li, Q Wang, W Zhang… - Journal of …, 2023 - Elsevier
Abstract Imidazo [1, 2-α] pyridine-based multifunctional derivatives have been widely utilized
in pharmaceuticals, chemical sensing, bioimaging, optoelectronics, and other fields …

Basic Fluorescent Protonation-Type pH Probe Sensitive to Small ΔpKa of Methanol and Ethanol

T Umeno, R Seto, S Matsumoto, M Fujihara… - Analytical …, 2022 - ACS Publications
An optical pH probe is a simple and effective tool for determining an accurate pH value in its
localized area. However, basic pH probes with p K BH+ values above 8 have rarely been …

Chelate-free “turn-on”-type fluorescence detection of trivalent metal ions

S Matsumoto, T Umeno, N Suzuki, K Usui… - Chemical …, 2022 - pubs.rsc.org
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 …

Order–Disorder Phase Transition between High- and Low-Z′ Crystal Structures of the P1 Space Group

R Oketani, H Takahashi, S Clevers… - Crystal Growth & …, 2022 - ACS Publications
We report a crystal structure of Boc-l-methionyl glycine methyl ester (MGP) with eight
molecules in the asymmetric unit (Z′= 8), which is the highest number in dipeptide …

Acid responsiveness of emissive morpholinyl aminoquinolines and their use for cell fluorescence imaging

Y Fukumoto, T Umeno, H Kuramochi… - Organic & …, 2022 - pubs.rsc.org
Herein, we report emissive aminoquinoline derivatives (TFMAQ) containing alkylmorpholine
and arylmorpholine groups and their photophysical properties, acid-responsiveness, and …

Photoisomerization of “Partially Embedded Dihydropyridazine” with a Helical Structure

K Usui, A Amano, K Murayama… - … A European Journal, 2023 - Wiley Online Library
Herein, we report the synthesis of two “partially embedded fused‐dihydropyridazine N‐aryl
aza [5] helicene derivatives”(PDHs) and the demonstration of their intrinsic photo‐triggered …

anti/gauche Conformations Lead to Polymorphism in Homologous Phenylalkylamino-Nicotinic Acids

Y Zhoujin, Y Li, PY Liang, PP Zhou, S Parkin… - Crystal Growth & …, 2023 - ACS Publications
A series of phenylalkylamino-nicotinic acids (1–4) were synthesized by varying the length of
the linker between the pyridine and benzene rings, and their polymorphism was …

Synthesis and Characterization of Emissive 1, 9, 10-Anthyridine Derivatives with Donor and Acceptor Groups

Y Fuchi, K Ikeno, M Fujihara, T Umeno… - Available at SSRN … - papers.ssrn.com
Abstract Push-pull-type emissive 1, 9, 10-anthyridine derivatives incorporating bis-
trifluoromethyl and amino (hydroxy) groups were designed and synthesized through the ring …

プッシュプル型アミノナフチリジン及びアミノキノリン誘導体を基盤とした可逆的酸塩基検出試薬の開発

松本祥汰, 梅野智大, 臼井一晃, 唐澤悟 - 分析化学, 2022 - jstage.jst.go.jp
抄録 電子ドナー性置換基とアクセプター性置換基を導入した二環性アミノキノリン誘導体やアミノ
ナフチリジン誘導体は, 溶媒などの環境に応答して発光変化する特徴を有し …