start-ver=1.4
cd-journal=joma
no-vol=23
cd-vols=
no-issue=8
article-no=
start-page=1509
end-page=1519
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2024
dt-pub=20240710
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Intramolecular [ƒÎ4s?+?ƒÎ4s] photocycloaddition of carbon- and nitrogen-bridged [32](1,4)naphthalenophanes
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=[32](1,4)Naphthalenophanes, bearing carbon-bridge chains (syn- and anti-NPs) and nitrogen-bridge chains (syn- and anti-ANPs), were synthesized, and their X-ray structures and photoreactions were investigated. The intramolecular separation distance between the naphthalene cores for ANPs was shorter than that for NPs, suggesting that intramolecular interactions between the naphthalene rings  were more efficient for ANPs compared to NPs. Upon photoirradiation at 300 nm, anti-NP, syn-ANP and anti-ANP produced the corresponding intramolecular [ƒÎ4s?+?ƒÎ4s] cycloadducts, whereas syn-NP gave an unidentified complex product mixture. Quantum yields for the photo-consumption (ƒ³PC) of NPs and ANPs were evaluated to quantitatively compare their photoreactivity. The ƒ³PC values of ANPs were approximately two-fold higher than those of ANPs.Noteworthily, the ƒ³PC value of syn-ANP was estimated to be unity. Based on these results we discuss the effects of the alignments of the naphthalene cores (anti vs. syn) and the bridging elements (C-bridge vs. N-bridge) on the photoreaction efficiencies of [32](1,4)naphthalenophanes.
en-copyright=
kn-copyright=

en-aut-name=OgumaYukiko
en-aut-sei=Oguma
en-aut-mei=Yukiko
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=

en-aut-name=YamamotoMasanori
en-aut-sei=Yamamoto
en-aut-mei=Masanori
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=2
ORCID=

en-aut-name=SunatsukiYukinari
en-aut-sei=Sunatsuki
en-aut-mei=Yukinari
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=3
ORCID=

en-aut-name=OtaHiromi
en-aut-sei=Ota
en-aut-mei=Hiromi
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=4
ORCID=

en-aut-name=YamajiMinoru
en-aut-sei=Yamaji
en-aut-mei=Minoru
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=5
ORCID=

en-aut-name=OkamotoHideki
en-aut-sei=Okamoto
en-aut-mei=Hideki
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=6
ORCID=

affil-num=1
en-affil=Division of Earth, Life, and Molecular Sciences, Graduate School of Natural Science and Technology, Okayama University
kn-affil=

affil-num=2
en-affil=Division of Earth, Life, and Molecular Sciences, Graduate School of Natural Science and Technology, Okayama University
kn-affil=

affil-num=3
en-affil=Division of Earth, Life, and Molecular Sciences, Graduate School of Natural Science and Technology, Okayama University
kn-affil=

affil-num=4
en-affil=Department of Instrumental Analysis, Advanced Science Research Center, Okayama University
kn-affil=

affil-num=5
en-affil=Division of Molecular Science, Graduate School of Science and Engineering, Gunma University
kn-affil=

affil-num=6
en-affil=Division of Earth, Life, and Molecular Sciences, Graduate School of Natural Science and Technology, Okayama University
kn-affil=
en-keyword=Cyclophane
kn-keyword=Cyclophane
en-keyword=Azacyclophane
kn-keyword=Azacyclophane
en-keyword=Naphthalenophane
kn-keyword=Naphthalenophane
en-keyword=Photocycloaddition
kn-keyword=Photocycloaddition
en-keyword=[4 + 4] cycloaddition
kn-keyword=[4 + 4] cycloaddition
END

start-ver=1.4
cd-journal=joma
no-vol=452
cd-vols=
no-issue=
article-no=
start-page=115613
end-page=
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2024
dt-pub=20240701
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Photochemical synthesis and solvatochromic fluorescence behavior of imide-fused phenacenes
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=Chrysenes, picene, fulminene, modified with imide, bromo, and amino functionalities, were synthesized through Mallory photoreaction as the key step, and their electronic spectra were investigated. Fluorescence spectra of chrysene-diimide CHRDI and bromo-substituted phencanene-imides, BrCHRI, BrPICI, BrFULI were dependent on solvent polarity to display appreciable fluorescence color changes. The solvatofluorochromic behavior was analyzed by conventional relationships between Stokes shift and solvent polarity parameters, such as Lippert-Mataga and Bilot-Kawski equations. The results indicated that the solvatofluorochromism was derived from the intramolecular charge transfer (ICT) nature in the excited state. Theoretical studies using time-dependent density-functional theory revealed that the phenacene-imide molecules in the fluorescent state possessed ICT characters between the strongly electron-withdrawing imide moiety and moderately electron-donating phenacene cores. Amino-substituted chrysene-imide NH2CHRI showed fluorescence band in a red region (ăFL = 618 nm) in toluene with a very large Stokes shift (Ģ nu= 7630 cm?1) suggesting that the molecule in the fluorescent state was highly polarized. The present results indicate that phenacenes would provide potential platforms for constructing future functional fluorophores through an appropriate functionalization.
en-copyright=
kn-copyright=

en-aut-name=NoseKeito
en-aut-sei=Nose
en-aut-mei=Keito
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=

en-aut-name=YamajiMinoru
en-aut-sei=Yamaji
en-aut-mei=Minoru
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=2
ORCID=

en-aut-name=TaniFumito
en-aut-sei=Tani
en-aut-mei=Fumito
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=3
ORCID=

en-aut-name=GotoKenta
en-aut-sei=Goto
en-aut-mei=Kenta
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=4
ORCID=

en-aut-name=OkamotoHideki
en-aut-sei=Okamoto
en-aut-mei=Hideki
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=5
ORCID=

affil-num=1
en-affil=Graduate School of Environmental, Life, Natural Science and Technology, Okayama University
kn-affil=

affil-num=2
en-affil=Division of Molecular Science, Graduate School of Science and Engineering, Gunma University
kn-affil=

affil-num=3
en-affil=Institute for Materials Chemistry and Engineering, Kyushu University
kn-affil=

affil-num=4
en-affil=Institute for Materials Chemistry and Engineering, Kyushu University
kn-affil=

affil-num=5
en-affil=Graduate School of Environmental, Life, Natural Science and Technology, Okayama University
kn-affil=
en-keyword=Phenacene
kn-keyword=Phenacene
en-keyword=Imide
kn-keyword=Imide
en-keyword=Fluorescence
kn-keyword=Fluorescence
en-keyword=Solvatofluorochromism
kn-keyword=Solvatofluorochromism
en-keyword=Intramolecular charge transfer
kn-keyword=Intramolecular charge transfer
END

start-ver=1.4
cd-journal=joma
no-vol=13
cd-vols=
no-issue=6
article-no=
start-page=4096
end-page=4101
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2023
dt-pub=20230130
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Solvent-dependent fluorescence behaviour of imide-fused [n]phenacenes (n=3, 5, 7)
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=Imide-fused [n]phenacenes (nPDIs, n = 3, 5, 7) were systematically synthesised and their electronic features were investigated by electrochemical and electronic spectral measurements. nPDIs showed two reduction waves attributed to formation of radical ions and dianions. 3PDI produced blue fluorescence independent of solvent polarity. In contrast, 5PDI and 7PDI displayed marked positive solvatofluorochromism due to intramolecular charge transfer characters between the imide moieties and phenacene pi cores in the excited state. The spectral features were analyzed by the Lippert-Mataga relationship and theoretical calculations.
en-copyright=
kn-copyright=

en-aut-name=NoseKeito
en-aut-sei=Nose
en-aut-mei=Keito
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=

en-aut-name=YoshiokaKaito
en-aut-sei=Yoshioka
en-aut-mei=Kaito
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=2
ORCID=

en-aut-name=YamajiMinoru
en-aut-sei=Yamaji
en-aut-mei=Minoru
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=3
ORCID=

en-aut-name=TaniFumito
en-aut-sei=Tani
en-aut-mei=Fumito
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=4
ORCID=

en-aut-name=GotoKenta
en-aut-sei=Goto
en-aut-mei=Kenta
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=5
ORCID=

en-aut-name=OkamotoHideki
en-aut-sei=Okamoto
en-aut-mei=Hideki
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=6
ORCID=

affil-num=1
en-affil=Division of Molecular Sciences, Graduate School of Natural Science and Technology, Okayama University
kn-affil=

affil-num=2
en-affil=Division of Molecular Sciences, Graduate School of Natural Science and Technology, Okayama University
kn-affil=

affil-num=3
en-affil=Division of Molecular Science, Graduate School of Science and Engineering, Gunma University
kn-affil=

affil-num=4
en-affil=Institute for Materials Chemistry and Engineering, Kyushu University
kn-affil=

affil-num=5
en-affil=Institute for Materials Chemistry and Engineering, Kyushu University
kn-affil=

affil-num=6
en-affil=Division of Molecular Sciences, Graduate School of Natural Science and Technology, Okayama University
kn-affil=
END

start-ver=1.4
cd-journal=joma
no-vol=7
cd-vols=
no-issue=6
article-no=
start-page=5495
end-page=5501
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2022
dt-pub=20220131
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Evaluation of Effective Field-Effect Mobility in Thin-Film and Single-Crystal Transistors for Revisiting Various Phenacene-Type Molecules
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=The magnitude of the field-effect mobility mu of organic thin-film and single-crystal field-effect transistors (FETs) has been over-estimated in certain recent studies. These reports set alarm bells ringing in the research field of organic electronics. Herein, we report a precise evaluation of the mu values using the effective field-effect mobility, mu(eff), a new indicator that is recently designed to prevent the FET performance of thin-film and single-crystal FETs based on various phenacene molecules from being overestimated. The transfer curves of a range of FETs based on phenacene are carefully categorized on the basis of a previous report. The exact evaluation of the value of mu(eff) depends on the exact classification of each transfer curve. The transfer curves of all our phenacene FETs could be successfully classified based on the method indicated in the aforementioned report, which made it possible to evaluate the exact value of mu(eff) for each FET. The FET performance based on the values of mu(eff) obtained in this study is discussed in detail. In particular, the mu(eff) values of single-crystal FETs are almost consistent with the mu values that were reported previously, but the mu(eff) values of thin-film FETs were much lower than those previously reported for mu, owing to a high absolute threshold voltage, vertical bar V-th vertical bar. The increase in the field-effect mobility as a function of the number of benzene rings, which was previously demonstrated based on the mu values of single-crystal FETs with phenacene molecules, is well reproduced from the mu(eff) values. The FET performance is discussed based on the newly evaluated mu(eff) values, and the future prospects of using phenacene molecules in FET devices are demonstrated.
en-copyright=
kn-copyright=

en-aut-name=ZhangYanting
en-aut-sei=Zhang
en-aut-mei=Yanting
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=

en-aut-name=EguchiRitsuko
en-aut-sei=Eguchi
en-aut-mei=Ritsuko
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=2
ORCID=

en-aut-name=HamaoShino
en-aut-sei=Hamao
en-aut-mei=Shino
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=3
ORCID=

en-aut-name=OkamotoHideki
en-aut-sei=Okamoto
en-aut-mei=Hideki
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=4
ORCID=

en-aut-name=GotoHidenori
en-aut-sei=Goto
en-aut-mei=Hidenori
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=5
ORCID=

en-aut-name=KubozonoYoshihiro
en-aut-sei=Kubozono
en-aut-mei=Yoshihiro
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=6
ORCID=

affil-num=1
en-affil=Research Institute for Interdisciplinary Science, Okayama University
kn-affil=

affil-num=2
en-affil=Research Institute for Interdisciplinary Science, Okayama University
kn-affil=

affil-num=3
en-affil=Research Institute for Interdisciplinary Science, Okayama University
kn-affil=

affil-num=4
en-affil=Department of Chemistry, Okayama University
kn-affil=

affil-num=5
en-affil=Research Institute for Interdisciplinary Science, Okayama University
kn-affil=

affil-num=6
en-affil=Research Institute for Interdisciplinary Science, Okayama University
kn-affil=
END

start-ver=1.4
cd-journal=joma
no-vol=10
cd-vols=
no-issue=52
article-no=
start-page=31547
end-page=31552
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2020
dt-pub=20200826
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Facile synthesis of picenes incorporating imide moieties at both edges of the molecule and their application to n-channel field-effect transistors
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=Picene derivatives incorporating imide moieties along the long-axis direction of the picene core (Cn-PicDIs) were conveniently synthesized through a four-step synthesis. Photochemical cyclization of dinaphthylethenes was used as the key step for constructing the picene skeleton. Field-effect transistor (FET) devices of Cn-PicDIs were fabricated by using ZrO2 as a gate substrate and their FET characteristics were investigated. The FET devices showed normally-off n-channel operation; the averaged electron mobility (ƒÊ) was evaluated to be 2(1) �~ 10?4, 1.0(6) �~ 10?1 and 1.4(3) �~ 10?2 cm2 V?1 s?1 for C4-PicDI, C8-PicDI and C12-PicDI, respectively. The maximum ƒÊ value as high as 2.0 �~ 10?1 cm2 V?1 s?1 was observed for C8-PicDI. The electronic spectra of Cn-PicDIs in solution showed the same profiles irrespective of the alkyl chain lengths. In contrast, in thin films, the UV absorption and photoelectron yield spectroscopy (PYS) indicated that the lowest unoccupied molecular orbital (LUMO) level of Cn-PicDIs gradually lowered upon the elongation of the alkyl chains, suggesting that the alkyl chains modify intermolecular interactions between the Cn-PicDI molecules in thin films. The present results provide a new strategy for constructing a high performance n-channel organic semiconductor material by utilizing the electronic features of phenacenes.
en-copyright=
kn-copyright=

en-aut-name=GuoYuxin
en-aut-sei=Guo
en-aut-mei=Yuxin
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=

en-aut-name=YoshiokaKaito
en-aut-sei=Yoshioka
en-aut-mei=Kaito
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=2
ORCID=

en-aut-name=HamaoShino
en-aut-sei=Hamao
en-aut-mei=Shino
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=3
ORCID=

en-aut-name=KubozonoYoshihiro
en-aut-sei=Kubozono
en-aut-mei=Yoshihiro
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=4
ORCID=

en-aut-name=TaniFumito
en-aut-sei=Tani
en-aut-mei=Fumito
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=5
ORCID=

en-aut-name=GotoKenta
en-aut-sei=Goto
en-aut-mei=Kenta
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=6
ORCID=

en-aut-name=OkamotoHideki
en-aut-sei=Okamoto
en-aut-mei=Hideki
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=7
ORCID=

affil-num=1
en-affil=Division of Earth, Life, and Molecular Sciences, Graduate School of Natural Science and Technology, Okayama University
kn-affil=

affil-num=2
en-affil=Division of Earth, Life, and Molecular Sciences, Graduate School of Natural Science and Technology, Okayama University
kn-affil=

affil-num=3
en-affil=Research Institute for Interdisciplinary Science, Okayama University
kn-affil=

affil-num=4
en-affil=Research Institute for Interdisciplinary Science, Okayama University
kn-affil=

affil-num=5
en-affil=Institute for Materials Chemistry and Engineering, Kyushu University
kn-affil=

affil-num=6
en-affil=Institute for Materials Chemistry and Engineering, Kyushu University
kn-affil=

affil-num=7
en-affil=Division of Earth, Life, and Molecular Sciences, Graduate School of Natural Science and Technology, Okayama University
kn-affil=
END

start-ver=1.4
cd-journal=joma
no-vol=8
cd-vols=
no-issue=22
article-no=
start-page=7422
end-page=7435
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2020
dt-pub=20200418
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Synthesis of [7]phenacene incorporating tetradecyl chains in the axis positions and its application in field-effect transistors
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=Field-effect transistors (FETs) were fabricated using a new type of phenacene molecule, 3,12-ditetradecyl[7]phenacene ((C14H29)2-[7]phenacene), and solid gate dielectrics or an electric double layer (EDL) capacitor with an ionic liquid (1-butyl-3-methylimidazolium hexafluorophosphate (bmim[PF6])). The new molecule, (C14H29)2-[7]phenacene, was efficiently synthesized via the Mallory photoreaction. Its crystal structure and electronic properties were determined, using X-ray diffraction, scanning tunneling microscopy/spectroscopy (STM and STS), absorption spectroscopy, and photoelectron yield spectroscopy, which showed a monoclinic crystal lattice (space group P21 (no. 4)) and an energy gap of ?3.0 eV. The STM image clearly showed the molecular structure of (C14H29)2-[7]phenacene, as well as the closed molecular stacking, indicative of a strong fastener effect between alkyl chains. The X-ray diffraction pattern of thin films of (C14H29)2-[7]phenacene formed on a SiO2/Si substrate suggested that the molecule stood on the surface with an inclined angle of 30�‹ with respect to the normal axis of the surface. The FET properties were recorded in two-terminal measurement mode, showing p-channel normally-off characteristics. The averaged values of field-effect mobility, ƒÊ, were 1.6(3) cm2 V?1 s?1 for a (C14H29)2-[7]phenacene thin-film FET with a SiO2 gate dielectric and 6(4) �~ 10?1 cm2 V?1 s?1 for a (C14H29)2-[7]phenacene thin-film EDL FET with bmim[PF6]. Thus, higher FET performance was obtained with an FET using a thin film of (C14H29)2-[7]phenacene compared to parent [7]phenacene. This study could pioneer an avenue for the realization of high-performance FETs through the addition of alkyl chains to phenacene molecules.
en-copyright=
kn-copyright=

en-aut-name=OkamotoHideki
en-aut-sei=Okamoto
en-aut-mei=Hideki
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=

en-aut-name=HamaoShino
en-aut-sei=Hamao
en-aut-mei=Shino
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=2
ORCID=

en-aut-name=KozasaKeiko
en-aut-sei=Kozasa
en-aut-mei=Keiko
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=3
ORCID=

en-aut-name=WangYanan
en-aut-sei=Wang
en-aut-mei=Yanan
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=4
ORCID=

en-aut-name=KubozonoYoshihiro
en-aut-sei=Kubozono
en-aut-mei=Yoshihiro
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=5
ORCID=

en-aut-name=PanYong-He
en-aut-sei=Pan
en-aut-mei=Yong-He
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=6
ORCID=

en-aut-name=YenYu-Hsiang
en-aut-sei=Yen
en-aut-mei=Yu-Hsiang
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=7
ORCID=

en-aut-name=HoffmannGermar
en-aut-sei=Hoffmann
en-aut-mei=Germar
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=8
ORCID=

en-aut-name=TaniFumito
en-aut-sei=Tani
en-aut-mei=Fumito
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=9
ORCID=

en-aut-name=GotoKenta
en-aut-sei=Goto
en-aut-mei=Kenta
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=10
ORCID=

affil-num=1
en-affil=Graduate School of Natural Science and Technology, Okayama University
kn-affil=

affil-num=2
en-affil=Research Institute for Interdisciplinary Science, Okayama University
kn-affil=

affil-num=3
en-affil=Graduate School of Natural Science and Technology, Okayama University
kn-affil=

affil-num=4
en-affil=Research Institute for Interdisciplinary Science, Okayama University
kn-affil=

affil-num=5
en-affil=Research Institute for Interdisciplinary Science, Okayama University
kn-affil=

affil-num=6
en-affil=Department of Physics & Center for Quantum Technology, National Tsing Hua University
kn-affil=

affil-num=7
en-affil=Department of Physics & Center for Quantum Technology, National Tsing Hua University
kn-affil=

affil-num=8
en-affil=Department of Physics & Center for Quantum Technology, National Tsing Hua University
kn-affil=

affil-num=9
en-affil=Institute for Materials Chemistry and Engineering, Kyushu University
kn-affil=

affil-num=10
en-affil=Institute for Materials Chemistry and Engineering, Kyushu University
kn-affil=
END

start-ver=1.4
cd-journal=joma
no-vol=9
cd-vols=
no-issue=
article-no=
start-page=4009
end-page=
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2019
dt-pub=201938
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Synthesis of the extended phenacene molecules, [10]phenacene and [11]phenacene, and their performance in a field-effect transistor 
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract= The [10]phenacene and [11]phenacene molecules have been synthesized using a simple repetition of Wittig reactions followed by photocyclization. Sufficient amounts of [10]phenacene and [11]phenacene were obtained, and thin-film FETs using these molecules have been fabricated with SiO2 and ionic liquid gate dielectrics. These FETs operated in p-channel. The averaged measurements of field-effect mobility, <ƒÊ>, were 3.1(7)?�~?10-2 and 1.11(4)?�~?10-1?cm2 V-1 s-1, respectively, for [10]phenacene and [11]phenacene thin-film FETs with SiO2 gate dielectrics. Furthermore, [10]phenacene and [11]phenacene thin-film electric-double-layer (EDL) FETs with ionic liquid showed low-voltage p-channel FET properties, with <ƒÊ> values of 3(1) and 1(1)?cm2 V-1 s-1, respectively. This study also discusses the future utility of the extremely extended ƒÎ-network molecules [10]phenacene and [11]phenacene as the active layer of FET devices, based on the experimental results obtained.
en-copyright=
kn-copyright=

en-aut-name=OkamotoHideki
en-aut-sei=Okamoto
en-aut-mei=Hideki
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=

en-aut-name=HamaoShino
en-aut-sei=Hamao
en-aut-mei=Shino
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kn-aut-sei=
kn-aut-mei=
aut-affil-num=2
ORCID=

en-aut-name=EguchiRitsuko
en-aut-sei=Eguchi
en-aut-mei=Ritsuko
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kn-aut-sei=
kn-aut-mei=
aut-affil-num=3
ORCID=

en-aut-name=GotoHidenori
en-aut-sei=Goto
en-aut-mei=Hidenori
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kn-aut-sei=
kn-aut-mei=
aut-affil-num=4
ORCID=

en-aut-name=TakabayashiYasuhiro
en-aut-sei=Takabayashi
en-aut-mei=Yasuhiro
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=5
ORCID=

en-aut-name=YenPaul Yu-Hsiang
en-aut-sei=Yen
en-aut-mei=Paul Yu-Hsiang
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kn-aut-sei=
kn-aut-mei=
aut-affil-num=6
ORCID=

en-aut-name=LiangLuo Uei
en-aut-sei=Liang
en-aut-mei=Luo Uei
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=7
ORCID=

en-aut-name=ChouChia-Wei
en-aut-sei=Chou
en-aut-mei=Chia-Wei
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kn-aut-mei=
aut-affil-num=8
ORCID=

en-aut-name=HoffmannGermar
en-aut-sei=Hoffmann
en-aut-mei=Germar
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=9
ORCID=

en-aut-name=GohdaShin
en-aut-sei=Gohda
en-aut-mei=Shin
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=10
ORCID=

en-aut-name=SuginoHisako
en-aut-sei=Sugino
en-aut-mei=Hisako
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=11
ORCID=

en-aut-name=LiaosYen-Fa
en-aut-sei=Liaos
en-aut-mei=Yen-Fa
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=12
ORCID=

en-aut-name=IshiiHirofumi
en-aut-sei=Ishii
en-aut-mei=Hirofumi
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=13
ORCID=

en-aut-name=KubozonoYoshihiro
en-aut-sei=Kubozono
en-aut-mei=Yoshihiro
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=14
ORCID=

affil-num=1
en-affil= Department of Chemistry, Okayama University
kn-affil=

affil-num=2
en-affil=Research Institute for Interdisciplinary Science, Okayama University
kn-affil=

affil-num=3
en-affil=Research Institute for Interdisciplinary Science, Okayama University
kn-affil=

affil-num=4
en-affil=Research Institute for Interdisciplinary Science, Okayama University
kn-affil=

affil-num=5
en-affil= Department of Chemistry, Okayama University
kn-affil=

affil-num=6
en-affil=Department of Physics, National Tsing Hua University
kn-affil=

affil-num=7
en-affil=Department of Physics, National Tsing Hua University
kn-affil=

affil-num=8
en-affil=Department of Physics, National Tsing Hua University
kn-affil=

affil-num=9
en-affil=Department of Physics, National Tsing Hua University
kn-affil=

affil-num=10
en-affil=NARD Co Ltd
kn-affil=

affil-num=11
en-affil=NARD Co Ltd
kn-affil=

affil-num=12
en-affil=National Synchrotron Radiation Center
kn-affil=

affil-num=13
en-affil=National Synchrotron Radiation Center
kn-affil=

affil-num=14
en-affil=Research Institute for Interdisciplinary Science, Okayama University
kn-affil=
END

start-ver=1.4
cd-journal=joma
no-vol=60
cd-vols=
no-issue=43
article-no=
start-page=151189
end-page=
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2019
dt-pub=20190920
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Fluorescence properties of amido-substituted 2,3-naphthalimides: Excited-state intramolecular proton transfer (ESIPT) fluorescence and responses to Ca2+ ions
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract= 2,3-Naphthalimide derivatives incorporating trifluoroacetamido (3a) and methansulfonamido (3b) functionalities at the 1-position were prepared and their intramolecular excited state proton transfer (ESIPT) fluorescence and responses to metal ions were investigated. Compound 3a displayed normal fluorescence in the amide form in toluene and MeCN and no response to metal cations in the corresponding amidate ion form. In contrast, compound 3b gave off dual emission assignable to normal and ESIPT fluorescence. Additionally, the amidate form of compound 3b displayed off-on fluorescence response to Ca2+.
en-copyright=
kn-copyright=

en-aut-name=WangLei
en-aut-sei=Wang
en-aut-mei=Lei
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=

en-aut-name=FujiiMayu
en-aut-sei=Fujii
en-aut-mei=Mayu
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=2
ORCID=

en-aut-name=NambaMisa
en-aut-sei=Namba
en-aut-mei=Misa
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=3
ORCID=

en-aut-name=YamajiMinoru
en-aut-sei=Yamaji
en-aut-mei=Minoru
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=4
ORCID=

en-aut-name=OkamotoHideki
en-aut-sei=Okamoto
en-aut-mei=Hideki
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=5
ORCID=

affil-num=1
en-affil=Division of Earth, Life, and Molecular Sciences, Graduate School of Natural Science and Technology, Okayama University
kn-affil=

affil-num=2
en-affil=Division of Earth, Life, and Molecular Sciences, Graduate School of Natural Science and Technology, Okayama University
kn-affil=

affil-num=3
en-affil=Division of Earth, Life, and Molecular Sciences, Graduate School of Natural Science and Technology, Okayama University
kn-affil=

affil-num=4
en-affil=Division of Molecular Science, Graduate School of Science and Engineering, Gunma University
kn-affil=

affil-num=5
en-affil=Division of Earth, Life, and Molecular Sciences, Graduate School of Natural Science and Technology, Okayama University
kn-affil=
en-keyword=Fluorescence
kn-keyword=Fluorescence
en-keyword=ESIPT
kn-keyword=ESIPT
en-keyword=Naphthalimide
kn-keyword=Naphthalimide
en-keyword=Ca2+ probe
kn-keyword=Ca2+ probe
END

start-ver=1.4
cd-journal=joma
no-vol=
cd-vols=
no-issue=
article-no=
start-page=
end-page=
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=1995
dt-pub=19950930
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=ƒxƒ“ƒ[ƒ“-ƒAƒŒ�[ƒ“ƒoƒCƒvƒŒƒ“ƒ}�[‚Ì�‡�¬‹y‚щ»Šw“I‹““®‚ÌŒ¤‹†
kn-title=Studies on Synthesis and Chemistry of Benzene-Arene Biplanemers
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=
en-copyright=
kn-copyright=

en-aut-name=
en-aut-sei=
en-aut-mei=
kn-aut-name=‰ª–{�G‹B
kn-aut-sei=‰ª–{
kn-aut-mei=�G‹B
aut-affil-num=1
ORCID=

affil-num=1
en-affil=
kn-affil=‰ªŽR‘åŠw
END