Výsledky vyhledávání - "Tomoharu Ama"

Akademický článek

Pentaaquatri-μ3-hydroxido-tris(iminodiacetato)-μ3-oxido-tetrahedro-calcium(II)tricobalt(III) 2.54-hydrate

Autor: Tomoharu Ama, Toshiaki Yonemura, Shogo Morita, Masanori Yamaguchi

Publikováno v: Acta Crystallographica Section E, Vol 66, Iss 4, Pp m483-m484 (2010)

In the title compound, [CaCo3(C4H5NO4)3(OH)3O(H2O)5]·2.54H2O, the Co atom is octahedrally coordinated by one iminodiacetate (ida) dianion as a facial O,N,O′-tridentate ligand, two μ3-OH groups and one μ3-O ligand, forming an partial Co3O4 cubane

Externí odkaz: https://doaj.org/article/7c50cde870df4c8682727b134e2aec81

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A novel mixed valence tetranuclear nitrosyl complex bridged by tetraoxomolybdate

Autor: Tomoko Hashimoto, Toshiaki Yonemura, Tomoharu Ama, Mayumi Hasegawa, Tamami Ikenoue, Hiroshi Kawaguchi

Publikováno v: Inorganic Chemistry Communications. 9:183-186

The reaction of the molybdenum–dinitrosyl complexes with PPh3, using 2-pyrimidinethiolate (pymt) or 2-pyridinethiolate (pyt) as a thiolate ligand, was found to produce a dinuclear complex [{(ON)MoL2}2(μ-OH)2] (1) (L = pymt or pyt) and Ph3PO. In ad

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::252dff7d015a1d8aa7c68a8ff88b5294
https://doi.org/10.1016/j.inoche.2005.10.033

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The Incomplete Cubane Complexes Having Co3O4or Mo3S4Core with the N–N–O Type Tridentates; L-histidinato and Ethylenediamine-N-acetato

Autor: Hiroshi Kawaguchi, Md. Monzur Rashid, Ashok Kumar Sarker, Toshiaki Yonemura, Hideyuki Miyakawa, Takaji Yasui, Tomoharu Ama

Publikováno v: Bulletin of the Chemical Society of Japan. 74:2327-2333

A trinuclear cobalt(III) complex, [Co3(L-his)3(μ-OH)3(μ3-O)]ClO4·H2O (L-Hhis: L-histidine), containing an incomplete cubane Co3O4 core was isolated and the structure was compared with [Co3(edma)3(μ-OH)3(μ3-O)]+ (Hedma: NH2CH2CH2NHCH2COOH) isomer

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::4d3776c2451256f2bd3d1202236cd89e
https://doi.org/10.1246/bcsj.74.2327

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Synthesis and X-Ray Structural Study of Magnesium (1,3-Propanediaminetetraacetato)nickelate(II) Octahydrate, Mg[Ni(1,3-pdta)]•H2O. Structural Parameters and Strain Analysis of [M(1,3-pdta)]n−Complexes in Relation to Their Octahedral Distortion

Autor: Divna M. Ristanovic, Dušan J. Radanović, Svetlana K Janićijević, Nenad S. Drašković, Hiroshi Kawaguchi, Tomoharu Ama

Publikováno v: Bulletin of the Chemical Society of Japan. 74:701-706

The hexadentate complex Mg[Ni(1,3-pdta)]•H2O (1,3-pdta = 1,3-propanediaminetetraacetate ion) was prepared and its structure established by X-ray crystallography. The complex salt crystallizes in the space group Pnna (# 52) of the orthorhombic cryst

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::ef0764b4177aae7543675236c2498b27
https://doi.org/10.1246/bcsj.74.701

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Preparation and Crystal Structure of thetrans(O5) Isomer of Magnesium(ethylenediamine-N,N,N′-triacetato-N′-3-propionato)cuprate(II) Octahydrate, Mg[Cu(ed3ap)]·8H2O. Stereochemistry of Octahedral Cu(II)-EDTA-Type Complexes in Relation to the Structure of the Ligand

Autor: Dejan M. Gurešić, Divna M. Ristanovic, Dušanka Radanović, Dušan J. Radanović, Hiroshi Kawaguchi, Tomoharu Ama

Publikováno v: Bulletin of the Chemical Society of Japan. 73:2283-2288

The hexadentate complex trans(O5)-Mg[Cu(ed3ap)]·8H2O (1) (ed3ap = ethylenediamine-N,N,N′-triacetate-N′-3-propionate (4-) ion) has been prepared and its structure established by X-ray crystallography. The complex crystallizes in space group Pna21

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::df48c98fad8a42e1fd681890e6e7cb49
https://doi.org/10.1246/bcsj.73.2283

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Cobalt(III) complexes containing incomplete C3O4 or complete Co4O4 cubane core

Autor: Tomoharu Ama, Takaji Yasui, Md. Monzur Rashid, Toshiaki Yonemura, Hiroshi Kawaguchi

Publikováno v: Coordination Chemistry Reviews. 198:101-116

The modeling study of the photosynthetic water oxidation center has been extended to the cobalt(III) complexes with incomplete or complete cubane core. In the preparation of the [Co3(NNO)3(μ-OH)3(μ3-O)]+ complexes from [Co(NNO)(H2O)3]2+

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::26af4173557073ffb87866d6dbec9093
https://doi.org/10.1016/s0010-8545(99)00193-9

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Three-Membered −SCoCH2 Chelate Ring Complex Formed by Photodecarboxylation Reaction of Optically Active trans(O)-[Co(edtda)(en)]Cl (edtda = Ethylenedithiodiacetate)

Autor: Ken-ichi Okamoto, Toshiaki Yonemura, Kimi Shibuya, Tomoharu Ama, Hiroshi Kawaguchi, Jinsai Hidaka, Takaji Yasui

Publikováno v: Inorganic Chemistry. 38:3244-3247

A [Co(N)2(O)2(S)2]-type complex containing two coordinated thioether groups, trans(O)-[Co(edtda)(en)]+ (edtda = ethylenedithiodiacetate; en = ethylenediamine), has been prepared which was spontaneously resolved. The photodecarboxylation reaction of t

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::5e5200e1a38a4f467ca60563f7818e2d
https://doi.org/10.1021/ic981391+

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Synthesis, characterisation and polynuclearisation reaction of trans(S)-[Co(aminothiolate-N,S )2(en)]-type cobalt(III) complexes with 2-aminoethanethiolate, L-cysteinate and D-penicillaminate

Autor: Takaji Yasui, Hiroshi Kawaguchi, Ken-ichi Okamoto, Toshiaki Yonemura, Zhi-Ping Bai, Jinsai Hidaka, Tomoharu Ama

Publikováno v: Journal of the Chemical Society, Dalton Transactions. :2151-2158

The trans(S)-[Co(N)4(S)2]-type mononuclear complexes [Co(L)2(en)]+ or – (L = 2-aminoethanethiolate (aet) 1, L-cysteinate (L-cys) 3 or D-penicillaminate (3-sulfanyl-D-valinate) (D-pen) 5) were newly prepared by the reaction of trans-[CoCl2(en)2]+ wi

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::136c46df11a83af019cef296e43f5458
https://doi.org/10.1039/a809753d

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Trinuclear Complexes Containing Incomplete Cubane CoIII3O4Cores. Structures of the Isomers of theN-(2-Pyridylmethyl)glycinato Complex

Autor: Tomoharu Ama, Masayoshi Yamaguchi, Toshiaki Yonemura

Publikováno v: Bulletin of the Chemical Society of Japan. 79:1063-1065

Two isomers of N-(2-pyridylmethyl)glycinatocobalt(III) complexes containing incomplete cubane Co3O4 cores, [Co3(pg)3(μ3-O)(μ-OH)3]+, were isolated and their structures were determined by the X-ray ...

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::a3aeed5d5b5fd8c9ccaec6ec347a88ec
https://doi.org/10.1246/bcsj.79.1063

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