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

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

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

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), have been characterized by X-ray crystal structure analyses and magnetic measurements. Homo-metal complexes 1 and 2 are tetranuclear complexes. Complex 1 has a defective double-cubane metal core. The valence state of cobalt ions is assigned to mixed valence Co(II)2Co(III)2. On the contrary, 2 takes a simple cubane core comprised of four [Ni(II)(L1-Bz)] monomer units. Complex 3 has a novel hetero-metal and mixed-valence trinuclear metal core structure. Cryomagnetic studies for 1–3 indicate that ferromagnetic interactions are dominate due to the cubane-based metal core structures.

Original languageEnglish
Pages (from-to)136-142
Number of pages7
JournalPolyhedron
Volume136
DOIs
Publication statusPublished - Nov 4 2017

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cubane
Cobalt
Nickel
Magnetic properties
cobalt
Metals
Ligands
nickel
magnetic properties
ligands
synthesis
metals
valence
Coordination Complexes
Magnetic variables measurement
Metal complexes
Monomers
Crystal structure
magnetic measurement
Ions

All Science Journal Classification (ASJC) codes

  • Physical and Theoretical Chemistry
  • Inorganic Chemistry
  • Materials Chemistry

Cite this

Yoshitake, M., Nishihashi, M., Ogata, Y., Yoneda, K., Yamada, Y., Sakiyama, H., ... Koikawa, M. (2017). Syntheses, structures, and magnetic properties of cubane-based cobalt and nickel complexes with ONO-tridentate ligands. Polyhedron, 136, 136-142. https://doi.org/10.1016/j.poly.2017.03.043

Syntheses, structures, and magnetic properties of cubane-based cobalt and nickel complexes with ONO-tridentate ligands. / Yoshitake, Megumi; Nishihashi, Momoko; Ogata, Yasumasa; Yoneda, Ko; Yamada, Yasunori; Sakiyama, Hiroshi; Mishima, Akio; Ohba, Masaaki; Koikawa, Masayuki.

In: Polyhedron, Vol. 136, 04.11.2017, p. 136-142.

Research output: Contribution to journalArticle

Yoshitake, M, Nishihashi, M, Ogata, Y, Yoneda, K, Yamada, Y, Sakiyama, H, Mishima, A, Ohba, M & Koikawa, M 2017, 'Syntheses, structures, and magnetic properties of cubane-based cobalt and nickel complexes with ONO-tridentate ligands', Polyhedron, vol. 136, pp. 136-142. https://doi.org/10.1016/j.poly.2017.03.043
Yoshitake, Megumi ; Nishihashi, Momoko ; Ogata, Yasumasa ; Yoneda, Ko ; Yamada, Yasunori ; Sakiyama, Hiroshi ; Mishima, Akio ; Ohba, Masaaki ; Koikawa, Masayuki. / Syntheses, structures, and magnetic properties of cubane-based cobalt and nickel complexes with ONO-tridentate ligands. In: Polyhedron. 2017 ; Vol. 136. pp. 136-142.
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