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Akademický článek

Crystal Structures, Magnetic Properties, and Redox Behaviors of Carboxylato-Bridged Mn(II) Complexes with Ditopic Ligands Featuring N3-Coordination Sites

Autor: Junya Sugiyama, Yusuke Umemoto, Sota Sato, Ko Yoneda, Masayuki Koikawa

Publikováno v: Chemistry, Vol 6, Iss 4, Pp 601-617 (2024)

Carboxylato-bridged dinuclear and tetranuclear Mn(II) complexes 1–3 with ditopic ligands featuring two N3-terminal coordination sites connected by hexyl (tphn), octyl (tpon), and p-xylyl (tpxn) linkers have been synthesized and characterized throug

Externí odkaz: https://doaj.org/article/8fe0e60ea6a24ad0a0761b024617b725

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Akademický článek

Noncentrosymmetric Supramolecular Hydrogen-Bonded Assemblies Based on Achiral Pyrazine-Bridged Zinc(II) Coordination Polymers with Pyrazinedione Derivatives

Autor: Ko Yoneda, Ken Kanazashi, Hitoshi Kumagai, Ryuta Ishikawa, Satoshi Kawata

Publikováno v: Chemistry, Vol 5, Iss 1, Pp 179-186 (2023)

Reaction of M(OAc)2·xH2O (M, x = Zn, 2 and Co, 4), 1,4-dihydro-5,6-dicyano-2,3-pyrazinedione (H2CN2pyzdione), and pyrazine (pyz) affords two compounds of the same molecular formula {[M(H2O)6][M(CN2pyzdione)2(pyz)]·6H2O}n (M = Zn for 1 and Co for 2)

Externí odkaz: https://doaj.org/article/95d30ec5fc2c4fc980e31624186d37db

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Akademický článek

Novel Tetranuclear Heterometallic Mn3Ni and Mononuclear Ni Complexes with an ONO Schiff Base Ligand: Synthesis, Crystal Structures, and Magnetic Properties

Autor: Masato Fukuda, Ken Eguchi, Kazuma Matsumoto, Ko Yoneda, Yasunori Yamada, Haruka Yoshino, Yuki Imamura, Naoya Yamamoto, Masaaki Ohba, Masayuki Koikawa

Publikováno v: Magnetochemistry, Vol 9, Iss 11, p 225 (2023)

A mononuclear Ni(II) complex, [Ni(HL1)2], (1) and a novel tetranuclear heterometal Mn-Ni complex, [Mn3Ni(L1)4Cl2(EtOH)2], (2) [H2L1 = N-(2-hydroxymethylphenyl)salicylideneimine], have been synthesized and characterized via X-ray crystal structure ana

Externí odkaz: https://doaj.org/article/c392d528012d41d98a2157a564dbdb47

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Syntheses, structures, and magnetic properties of cubane-based cobalt and nickel complexes with ONO -tridentate ligands

Autor: Hiroshi Sakiyama, Ko Yoneda, Masaaki Ohba, Yasunori Yamada, Akio Mishima, Megumi Yoshitake, Momoko Nishihashi, Masayuki Koikawa, Yasumasa Ogata

Publikováno v: Polyhedron. 136:136-142

Three types of cubane-based complexes, [Co4(L1-H)4Cl2(MeOH)2] (1) [H2L1-H = N-(2-hydroxymethylphenyl)salicylideneimine], [Ni4(L1-Bz)4(EtOH)4] (2) [H2L1-Bz = N-(2-hydroxymethylphenyl)-5,6-benzosalicylideneimine], and [Co2Ni(L1-H)2(HL1-H)(CH3COO)2] (3)

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::dc8f6b8366a2b53f90af4faff02f9549
https://doi.org/10.1016/j.poly.2017.03.043

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Syntheses, crystal structures, and spectroscopic properties of mixed-ligand cobalt(III) complexes with optically active penicillaminates: Stereospecific interactions and spontaneous crystallizations depending on counter anions

Autor: Ko Yoneda, Yasunori Yamada, Masayuki Koikawa, Toshihiro Nagasaki

Publikováno v: Inorganica Chimica Acta. 428:127-132

The optically active mixed-ligand complex, [Co( d -pen)(bpma)] + {pen = penicillaminate; bpma = bis(2-pyridylmethyl)amine}, and its enantiomer, [Co( l -pen)(bpma)] + , were prepared by the reactions of CoCl 2 ·6H 2 O, bpma, and d -pen 2− (or l -pe

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::352ebc110a87fc0cd65b5c4eeb0f5804
https://doi.org/10.1016/j.ica.2014.12.030

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Water adsorption–desorption property of stable porous supramolecular assembly composed of discrete tetranuclear iron(III) complex using π⋯π interactions

Autor: Satoshi Kawata, Akira Fuyuhiro, Ko Yoneda, Ryuta Ishikawa, Hirotoshi Sakamoto, Susumu Kitagawa, Kyonosuke Nishio

Publikováno v: Inorganica Chimica Acta. 386:122-128

A tetranuclear FeIII complex, [FeIII4(μ-bpypz)4(μ-O)2(NO3)2(H2O)2](NO3)2·3MeOH (1) (bpypz− = 3,5-bis(2-pyridyl)pyrazolate), has been synthesized and characterized. Single-crystal X-ray structural determination reveals that the extended three-dim

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::95b2a443147fb1167985b205f991acd6
https://doi.org/10.1016/j.ica.2012.02.002

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