Výsledky vyhledávání - "Junnosuke Fujita"

Syntheses, Structures and Spectroscopic Properties of Mixed-Ligand Chromium(III) Complexes Containing 1,2-Bis(dimethylphosphino)ethane, 1,3-Bis(dimethylphosphino)propane or 1,1,1-Tris(dimethylphosphinomethyl)ethane

Autor: Kazuo Kashiwabara, Takayoshi Suzuki, Tsutomu Usami, Junnosuke Fujita, Takeshi Imamura, Sumio Kaizaki, Masakazu Kiki

Publikováno v: Bulletin of the Chemical Society of Japan. 74:1055-1064

Mixed-ligand chromium(III) complexes containing di- or tridentate phosphines, trans-[CrX2(dmpe)2]+ (X = Cl, Br, I, CN, NCS or N3; dmpe = Me2P(CH2)2PMe2), trans-[CrX′2(dmpp)2]+ (X′ = Cl, Br or I; dmpp = Me2P(CH2)3PMe2), [CrX′′3(tdmme)] (X′�

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::7331985c85e597e27c5d061ece8510c3
https://doi.org/10.1246/bcsj.74.1055

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Isomerization and racemization of (acetylacetonato)bis(4,4′-dimethyl-2,2′-bipyridine 1,1′-dioxide)chromium(III), (acetylacetonato)bis(4,4′-dimethoxy-2,2′-bipyridine 1,1′-dioxide)chromium(III) and (acetylacetonato)bis(4,4′-diethoxy-2,2′-bipyridine 1,1′-dioxide)chromium(III) complexes

Autor: Hideaki Kanno, Shunji Utsuno, Junnosuke Fujita, Mitsuko Yagi

Publikováno v: Inorganica Chimica Acta. 281:221-224

A series of chromium(III) complexes, [Cr(acetylacetonato)(4,4′-X 2 bpdo) 2 ] 2− (X = Me, MeO, EtO), where 4,4′-X 2 bpdo denotes 4,4′-substituted 2,2′-bipyridine 1,1′-dioxide, were prepared and resolved into pairs of enantiomers. The perch

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::e33d5cfc77853ba0436ff3714f362b8e
https://doi.org/10.1016/s0020-1693(98)00151-0

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Syntheses and crystal structures of geometrical isomeric pairs: Trans- and cis-(PPh4) [Co (acac)2 (CN)2] and trans- and cis-[Co(acac)2(PMe3 or PEt3)2]PF6 (acac = pentane-2,4-dionate)

Autor: Kazuo Kashiwabara, Sumio Kaizaki, Takayoshi Suzuki, Junnosuke Fujita, Masakazu Kita

Publikováno v: Inorganica Chimica Acta. 281:77-84

Reactions of trans-[Co(acac)2(PPh4)2]PF6 (aca = pentane-2,4-dionate) with PR3 (R = Me or Et) in methanol afforded new complexes, trans-(PPh4) [Co(acac)2(CN)2] and trans-[Co(acac)2(PR3)2]PF6, respectively. The structures of the new trans-isomers, toge

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::d1aa9990fe2af6e8f61a3f21c68d5713
https://doi.org/10.1016/s0020-1693(98)00146-7

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Preparation and Stereochemistry of Cobalt(III) Complexes Containing 2,2′-Bipyridine 1,1′-Dioxide

Autor: Hideaki Kanno, Takahiro Yano, Junnosuke Fujita, Shunji Utsuno, Katsumi Sato

Publikováno v: Bulletin of the Chemical Society of Japan. 70:1085-1091

New cobalt(III) complexes, [Co(N4)(bpdo)]3+ (N4 = (en)2, (tn)2, (NH3)4, and tren; bpdo = 2,2′-bipyridine 1,1′-dioxide) and [Co(en)2(rac-3,3′-Me2bpdo)]3+ (rac-3,3′-Me2bpdo = racemic3,3′-dimethyl-2,2′-bipyridine 1,1′-dioxide), were obtain

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::dda54ef1b1759d575b044d21a1c8102a
https://doi.org/10.1246/bcsj.70.1085

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Synthesis, stereochemistry and crystal structures of cobalt(III) complexes containing 5,8-diphenyl-2,11-dithia-5,8-diphosphadodecane or 5,9-diphenyl-2,12-dithia-5,9-diphosphatridecane

Autor: Kazuo Kashiwabara, Kiyohiko Nakajima, Junnosuke Fujita, Masakazu Kita, Yasuhiro Ito

Publikováno v: Journal of the Chemical Society, Dalton Transactions. :39-46

Twelve new cobalt(III) complexes containing a tetradentate phosphine ligand of the type MeS(CH 2 ) 2 PPh(CH 2 ) n PPh(CH 2 ) 2 SMe (n = 2 L 1 or 3 L 2 ) were prepared. Their structures were assigned on the basis of electronic absorption and 1 H NMR s

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::a7b6457a784e2e415b384704f71a36b2
https://doi.org/10.1039/a604759i

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Interconversion between Polymeric Orange and Monomeric Green Forms of a Schiff Base-Oxovanadium(IV) Complex

Autor: Shigeru Ohba, Shunryo Azuma, Setsuo Kashino, Masanobu Tsuchimoto, Junnosuke Fujita, Hironobu Maeda, Yuzo Yoshikawa, Kiyohiko Nakajima, Masaaki Kojima, Yoshihiro Kubozono, Ryuichi Kasahara

Publikováno v: Bulletin of the Chemical Society of Japan. 69:3207-3216

The orange and green forms of the Schiff base-oxovanadium(IV) complex, [VO{sal-(RR)-stien}]·MeOH (1, green), [VO{sal-(RR)-stien}]·2CHCl3 (2, green), and [VO{sal-(RR)-stien}]·CH3CN (3, orange) (H2{sal-(RR)-stien} = N,N′-disalicylidene-(RR)-1,2-di

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::5ccdc3798e4bd7dfd187a7a47f8acba8
https://doi.org/10.1246/bcsj.69.3207

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Preparation and Resolution of a Series of Cobalt(III) Complexes Containing 2,2′-Biimidazole and Ethylenediamine

Autor: Hideaki Kanno, Shunji Utsuno, Emiko Yamazaki, Satoru Manriki, Junnosuke Fujita

Publikováno v: Bulletin of the Chemical Society of Japan. 69:1981-1986

A new series of cobalt(III) complexes of the type [Co(H2biim)n(en)3−n]3+ (H2biim = 2,2′-biimidazole; n = 1—3) was obtained. All of the complexes were resolved into their antipodes by SP-Sephadex column chromatography. The absorption, circular d

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::8d6821dc39cc876eb231d9f4c0fe81c4
https://doi.org/10.1246/bcsj.69.1981

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Isomerization and Racemization of the Tris(4,4′-dimethoxy- or 4,4′-diethoxy-2,2′-bipyridine 1,1′-dioxide)chromium(III) Complexes

Autor: Hideaki Kanno, Junnosuke Fujita, Shunji Utsuno, Junko Yamamoto

Publikováno v: Bulletin of the Chemical Society of Japan. 69:665-671

Two new chromium(III) complexes, [Cr(4,4′-X2bpdo)3]3+ (X = MeO or EtO; bpdo = 2,2′–bipyridine 1,1′-dioxide), were prepared. These complexes form two diastereomers, lel3(Δ(λλλ), Λ(δδδ)) and lel2ob(Δ(λλδ), Λ(δδλ)), which were se

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::c1e3749b295e2ef51b1482bad8f670b0
https://doi.org/10.1246/bcsj.69.665

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Preparation and characterization of rhodium(III) complexes containing 1,1,1-tris(dimethylphosphinomethyl)ethane (tdmme). Structures of [RhX3(tdmme)](X = Cl, Br or I), [Rh(NH3)3(tdmme)]3+and [{Rh(tdmme)}2(µ-X)3]3+(X = Cl or OH) in the solid state and in solution

Autor: Takayoshi Suzuki, Kazuo Kashiwabara, Kiyoshi Isobe, Sumio Kaizaki, Junnosuke Fujita

Publikováno v: J. Chem. Soc., Dalton Trans.. :3779-3786

Several new rhodium(III) complexes containing a tripodal tridentate phosphine, MeC(CH2PMe2)3(tdmme), have been synthesized and their structures investigated both in the solid state and in solution. Single-crystal X-ray analyses revealed the smaller s

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::cbd6db716c6ae9d6413a8086aa4891df
https://doi.org/10.1039/dt9960003779

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Synthesis and Crystal Structure of Bis(1,1,1-tris(dimethylphosphinomethyl)ethane)iron(II) Tetrafluoroborate Dihydrate

Autor: Kiyohiko Nakajima, Junnosuke Fujita, Yuji Ozeki, Masakazu Kita, Kazuo Kashiwabara

Publikováno v: Bulletin of the Chemical Society of Japan. 68:3453-3457

An air and thermally stable iron(II) complex of 1,1,1-tris(dimethylphosphinomethyl)ethane (mmtp), [Fe(mmtp)2](BF4)2·2H2O, has been prepared, and the crystal structure has been determined by X-ray analysis. The complex was crystallized in the orthorh

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::cdd2c837835f432a1f99ef0254021388
https://doi.org/10.1246/bcsj.68.3453

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