Hydrothermal synthesis, crystal structure and characterization of a new hexanuclear cobalt(II) complex comprised of octahedral and tetrahedral cobalt ions

Hitoshi Kumagai, Yoshimi Oka, Satoshi Kawata, Masaaki Ohba, Katsuya Inoue, Mohamedally Kurmoo, Hisashi Okawa

Research output: Contribution to journalArticlepeer-review

36 Citations (Scopus)

Abstract

Reaction of Co(II) with phenylcinnamic acid and sodium hydroxide under hydrothermal conditions yields a new hexanuclear Co(II) complex, [Co6(OH)2(L)10] (L = phenylcinnamate). [Co6(OH)2(L)10] consists of two edge-sharing octahedral {CoO6} and four tetrahedral {CoO4} units linked through μ-carboxylate ligands and μ-hydroxide ions. The magnetic moment shows a large decrease from 300 to 25 K which amounts to antiferromagnetic coupling between cobalt ions in octahedral and tetrahedral sites leading to an s = 3 ground-state at low temperatures.

Original languageEnglish
Pages (from-to)1917-1920
Number of pages4
JournalPolyhedron
Volume22
Issue number14-17
DOIs
Publication statusPublished - Jul 15 2003

All Science Journal Classification (ASJC) codes

  • Physical and Theoretical Chemistry
  • Inorganic Chemistry
  • Materials Chemistry

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