Zobrazeno 1 - 10 of 11 pro vyhledávání: '"Takashi Morikita"'
1
Luminescent π-conjugated poly(aryleneethynylene)s consisting of plural aromatic units: Preparation and systematic studies on their optical properties
Autor: Takuma Yasuda, Takashi Morikita, Takakazu Yamamoto
Publikováno v: Reactive and Functional Polymers. 68:1483-1491
A series of π-conjugated poly(aryleneethynylene)s (PAEs) containing two or three different arylene units in the main chain have been prepared by palladium-catalyzed coupling reactions. The PAEs consist of 2,5-dihexyloxy-1,4-phenylene diethynylene (
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::d83d5eb43c8127973e42b339e3bf3a81
https://doi.org/10.1016/j.reactfunctpolym.2008.07.007
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2
New Soluble Poly(aryleneethynylene)s Consisting of Electron-Accepting Benzothiadiazole Units and Electron-Donating Dialkoxybenzene Units. Synthesis, Molecular Assembly, Orientation on Substrates, and Electrochemical and Optical Properties
Autor: Qiang Fang, Takakazu Yamamoto, Takashi Morikita
Publikováno v: Macromolecules. 36:4262-4267
A new class of poly(aryleneethynylene)s containing an aryl heterocyclic structure were prepared in the yield of higher than 80% by polycondensation between 4,7-dibromo-2,1,3-benzothiadiazole and 2,5-dialkoxy-1,4-diethynylbenzenes with different long
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::71a2b4387420e29618c6ff590046b4f1
https://doi.org/10.1021/ma0301552
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3
Electrochemical determination of diffusion coefficient of π-conjugated polymers containing ferrocene unit
Autor: Takakazu Yamamoto, Takashi Morikita
Publikováno v: Journal of Organometallic Chemistry. :809-812
The diffusion coefficient ( D ) of π-conjugated polymers containing ferrocene unit in the polymer main chain in a 1:1 mixture of CH 2 Cl 2 and CH 3 CN was determined from peak oxidation current observed in cyclic voltammetry of the polymers. The D v
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::9de22ec82b89d5e60248dbc07002e3fb
https://doi.org/10.1016/s0022-328x(01)00941-x
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4
Preparation and Properties of Poly[(2-alkylbenzimidazole)-alt-thiophene]s with Long Alkyl Side Chains
Autor: Ismayil Nurulla, Hiroki Fukumoto, Takakazu Yamamoto, Takashi Morikita
Publikováno v: Macromolecular Chemistry and Physics. 202:2335-2340
New alternative copolymers of thiophene and benzimidazole with alkyl side chains (alkyl = n-C 5 H 11 , n-C 7 H 15 , N-C 10 H 21 , n-C 12 H 25 , and n-C 18 H 37 ) have been prepared. The polymerization by Stille coupling of 2-alkyl-4,7-dibromobenzimid
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::54c4aa5344042ba6ed7bcdbc6733ad43
https://doi.org/10.1002/1521-3935(20010701)202:11<2335::aid-macp2335>3.0.co
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6
Preparation of poly(aryleneethynylene) type π-conjugated polymers constituted of 2-alkylbenzimidazole-4,7-diyl units by using palladium catalyzed cross coupling reaction
Autor: Takakazu Yamamoto, Hideki Hayashi, Takashi Morikita
Publikováno v: Inorganica Chimica Acta. 296:254-260
Palladium(0)-catalyzed polycondensations between 4,7-dibromo-2-alkylbenzimidazoles (alkyl= n -C 7 H 15 , n -C 12 H 25 and n -C 18 H 37 ) and 1,4-diethynyl-2,5-disubstituted-benzenes (substituents: O - n -C 6 H 13 , O - n -C 12 H 25 , n -C 12 H 25 and
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::86e209fc3475dcc833316f1a9ad97ba8
https://doi.org/10.1016/s0020-1693(99)00322-9
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7
C–S, C–H, and N–H bond cleavage of heterocycles by a zero-valent iron complex, Fe(N2)(depe)2 [depe=1,2-bis(diethylphosphino)ethane]
Autor: Masafumi Hirano, Sanshiro Komiya, Akito Sasaki, Takashi Morikita
Publikováno v: Inorganica Chimica Acta. 291:341-354
Treatment of Fe(N2)(depe)2 [depe=1,2-bis(diethylphosphino)ethane] (1) with benzo[b]thiophene at room temperature results in the regioselective C–S and C–H bond cleavages giving Fe(SC 6 H 4 CHC H)(depe)2 (2a) and trans-FeH( CCHC 6 H 4 S )(de
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::1f455fbe1ee4b8ebdee27a99b06cc69d
https://doi.org/10.1016/s0020-1693(99)00146-2
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8
Poly(aryleneethynylene) Type Polymers Containing a Ferrocene Unit in the π-Conjugated Main Chain. Preparation, Optical Properties, Redox Behavior, and Mössbauer Spectroscopic Analysis
Autor: Tsukasa Maruyama, Kenji Kubota, Motomi Katada, Takakazu Yamamoto, Takashi Morikita
Publikováno v: Macromolecules. 30:5390-5396
Palladium-catalyzed polycondensation between diiodoferrocenes (1,1‘-diiodoferrocene and 1,6-diiodo-1‘,6‘-biferrocene) and diethynyl aromatic compounds HC⋮CArC⋮CH (e.g., 2,5-diethynylpyridine and 2,5-diethynyl-3-hexylthiophene) gives poly(ar
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::fc02591e8316be8b2b3fa64491fa13b4
https://doi.org/10.1021/ma9704368
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9
Synthesis, structure and reactions of a dinitrogen complex of iron(0), [Fe(N2)(depe)2] (depe = Et2PCH2CH2PEt2)
Autor: Masatoshi Akita, Atsushi Fukuoka, Sanshiro Komiya, Masafumi Hirano, Hiroaki Kubo, Takashi Morikita
Publikováno v: Journal of the Chemical Society, Dalton Transactions. :3453-3458
Reduction of [FeCl2(depe)2] (depe = Et2PCH2CH2PEt2) by sodium–naphthalene under nitrogen gave a dinitrogen complex of iron(0), [Fe(N2)(depe)2] 1, in 72% yield. The crystal structure of 1 shows that the dinitrogen ligand bonds in an end-on fashion i
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::c80744867cf0cb9a828951e47554d93c
https://doi.org/10.1039/a702019h
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