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Ken‐ichi Sakai

Observed names: K. Sakai, Ken-ichi Sakai, SAKAI, Ken-ichi, Sakai, K., Sakai, Ken-ichi
ORCID: 0000-0002-4479-6421
Observed ORCID: 0000-0002-4479-6421
OpenAlex ID: A5037101850
An ESIPT fluorophore with a switchable intramolecular hydrogen bond for applications in solid-state fluorochromism and white light generation
2016 · Ken-ichi Sakai, Saki Tsuchiya, et al. · Journal of Materials Chemistry C · 103
Excited state intramolecular proton transfer (ESIPT) in six-coordinated zinc(ii)-quinoxaline complexes with ligand hydrogen bonds: their fluorescent properties sensitive to axial positions
2010 · Ken-ichi Sakai, Sami Takahashi, et al. · Dalton Transactions · 75
Highly efficient solid-state red fluorophores using ESIPT: crystal packing and fluorescence properties of alkoxy-substituted dibenzothiazolylphenols
2014 · Ken-ichi Sakai, Hiroshi Kawamura, et al. · CrystEngComm · 59
Cation–Anion Dual Sensing of a Fluorescent Quinoxalinone Derivative Using Lactam–Lactim Tautomerism
2015 · Yuta Nakane, Takashi Takeda, et al. · The Journal of Physical Chemistry A · 55
AIE active triphenylamine–benzothiazole based motifs: ESIPT or ICT emission
2016 · Vikas S. Padalkar, Daisuke Sakamaki, et al. · RSC Advances · 45
Optical and Structural Properties of ESIPT Inspired HBT–Fluorene Molecular Aggregates and Liquid Crystals
2017 · Vikas S. Padalkar, Yusuke Tsutsui, et al. · The Journal of Physical Chemistry B · 42
Highly emissive excited-state intramolecular proton transfer (ESIPT) inspired 2-(2′-hydroxy)benzothiazole–fluorene motifs: spectroscopic and photophysical properties investigation
2015 · Vikas S. Padalkar, Daisuke Sakamaki, et al. · RSC Advances · 36
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ESIPT Fluorescent Chromism and Conformational Change of 3-(2-Benzothiazolyl)-4-hydroxy-benzenesulfonic acid by Amine Sorption
2018 · Yuta Nakane, Takashi Takeda, et al. · The Journal of Physical Chemistry C · 34
Color Changes of a Full‐Color Emissive ESIPT Fluorophore in Response to Recognition of Certain Acids and Their Conjugate Base Anions
2018 · Saki Tsuchiya, Ken‐ichi Sakai, et al. · Chemistry - A European Journal · 32
AIE Active Carbazole‐Benzothiazole Based ESIPT Motifs: Positional Isomers Directing the Optical and Electronic Properties
2017 · Vikas S. Padalkar, Kenji Kuwada, et al. · ChemistrySelect · 21
Dual fluorescent zwitterionic organogels of a quinoxalinone derivative using cation–anion detection keys
2017 · Yuta Nakane, Takashi Takeda, et al. · Journal of Materials Chemistry C · 18
Bidentated Hydrogen Bond from [O−H···N−N···H−O] to [O-···+H−N−N−H+···-O] Structures in Solids
2003 · Tomoyuki Akutagawa, Tadafumi Uchimaru, et al. · The Journal of Physical Chemistry B · 15
Crystal-to-crystal structural transformation of hydrogen-bonding molecular crystals of (imidazolium)(3-hydroxy-2-quinoxalinecarboxylate) through H 2 O adsorption–desorption
2015 · Y. Yoshii, K. Sakai, et al. · CrystEngComm · 12
Photoinduced Generation of the π-Conjugated Zwitterionic State in the ESIPT Fluorophore of 2,4-Bisimidazolylphenol
2021 · Ken-ichi Sakai, Naoya Miyamoto, et al. · The Journal of Physical Chemistry A · 10
Supramolecular Chirality Achieved by Assembly of Small π-Molecules of Octahydrobinaphtols with Axial Chirality
2024 · Kei Kobayashi, Ken-ichi Sakai, et al. · The Journal of Physical Chemistry B · 8
The Structural Change Caused by Temperature-Induced Metal-to-Ligand Charge Transfer in [Pd(HBQD)2]TCNQ(HBQD = 1,2-Benzoquinonedioxime)
1997 · Ken-ichi Sakai, Hiroshi Kitagawa, et al. · Chemistry Letters · 8
Supramolecular Complexation and Collective Optical Properties Induced by Linking Two Methyl Salicylates via a σ-Bridge
2022 · Miku Takahashi, Ken-ichi Sakai, et al. · The Journal of Physical Chemistry B · 5
Partially-oxidized Ni(dmit)2 salt with copper ions
2001 · K. Sakai, T. Akutagawa, et al. · Synthetic Metals · 5
Substituent Effect on Molecular Motions of m-Halogenated Anilinium/Dibenzo[18]crown-6 Supramolecular Cations in [Ni(dmit)2]− Crystals
2021 · Kazuya Kubo, Kiyonori Takahashi, et al. · Crystal Growth & Design · 4
Physical properties of quasi-one-dimensional charge-transfer metal complexes;[M(HBQD)2]TCNQ (M=Ni, Pd; H2BQD=1,2-benzoquinonedioxime)
1997 · Yuka Kagami, Fumiyasu Iwahori, et al. · Synthetic Metals · 4
The d-L(π)-π type of charge-transfer salt [Cu(Me-tri) 2 ][Ni(dmit) 2 ] 2 : Interaction between copper( ii ) d- and Ni(dmit) 2 π-electrons via π-conjugated macrocyclic ligands
2003 · Ken-ichi Sakai, Tomoyuki Akutagawa, et al. · Physical Chemistry Chemical Physics · 3
Electron-Proton Co-operation in l-D d-π Electronic State-Basic Study of Protono-Electronics-
1996 · T. Mitani, H. Kitagawa, et al. · Molecular crystals and liquid crystals science technology. Section A, Molecular crystals and liquid crystals/Molecular crystals and liquid crystals science and technology. Section A, Molecular crystals and liquid crystals · 3
CCDC 2490988: Experimental Crystal Structure Determination
2026 · Tsushima, Toshitaka, Sato, Tetsu, et al. · The Cambridge Structural Database · 1
Author response for "Solid State ESIPT Emission Switching Containing Hydroquinone and p-Benzoquinone Units and its Charge-Transfer Complexes"
2026 · Toshitaka Tsushima, Tetsu Sato, et al. · Publons reviews and discussion
Solid state ESIPT emission switching containing hydroquinone and p -benzoquinone units and their charge-transfer complexes
2026 · Toshitaka Tsushima, Tetsu Sato, et al. · Journal of Materials Chemistry C
Works count: 38
Citation count: 598
H-index: 12
I10-index: 14
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