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

研究成果: ジャーナルへの寄稿学術誌査読

5 被引用数 (Scopus)

抄録

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.

本文言語英語
ページ(範囲)136-142
ページ数7
ジャーナルPolyhedron
136
DOI
出版ステータス出版済み - 11月 4 2017

!!!All Science Journal Classification (ASJC) codes

  • 物理化学および理論化学
  • 無機化学
  • 材料化学

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