Spin frustration from cis -edge or -corner sharing metal-centered octahedra

Romain Gautier, Kengo Oka, Takumi Kihara, Nitesh Kumar, Athinarayanan Sundaresan, Masashi Tokunaga, Masaki Azuma, Kenneth R. Poeppelmeier

研究成果: Article査読

23 被引用数 (Scopus)

抄録

A new strategy using cis-edge or -corner sharing metal-centered octahedra is described which enables interesting frustrated spin lattices to be targeted. The examination of "CuV2" triangular motifs in the two new compounds [enH2]Cu(H2O)2[V2O 2F8] (1) and [Cu(H2O)(2,2′-bpy)] 2[V2O2F8] (2) (where enH2 = ethylenediammonium and 2,2′-bpy =2,2′-bipyridyl) reveals that the [VOF4]2- anions, which exhibit cis structure directing properties, lead to frustrated lattices owing to the competing ferro and antiferromagnetic interactions. There is direct coordination through two cis F- ligands (i.e., the F- ligand trans to O2- and one equatorial F- ligand) in both 1 and 2 owing to the significant π-bonding between the vanadium and the oxide ligand. We emphasize that most of triangular motifs reported in the literature are built of cis-edge or -corner sharing metal-centered octahedra, thus they can be used to target new materials exhibiting interesting magnetism such as spin frustration.

本文言語English
ページ(範囲)19268-19274
ページ数7
ジャーナルJournal of the American Chemical Society
135
51
DOI
出版ステータスPublished - 2013 12月 26
外部発表はい

ASJC Scopus subject areas

  • 触媒
  • 化学 (全般)
  • 生化学
  • コロイド化学および表面化学

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