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 journalArticle

35 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

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Sodium Hydroxide
Hydrothermal synthesis
Cobalt
Magnetic moments
Ground state
hydroxides
cobalt
Crystal structure
Ions
Ligands
crystal structure
Acids
sodium hydroxides
synthesis
carboxylates
ions
magnetic moments
Sodium
Temperature
ligands

All Science Journal Classification (ASJC) codes

  • Physical and Theoretical Chemistry
  • Inorganic Chemistry
  • Materials Chemistry

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Hydrothermal synthesis, crystal structure and characterization of a new hexanuclear cobalt(II) complex comprised of octahedral and tetrahedral cobalt ions. / Kumagai, Hitoshi; Oka, Yoshimi; Kawata, Satoshi; Ohba, Masaaki; Inoue, Katsuya; Kurmoo, Mohamedally; Okawa, Hisashi.

In: Polyhedron, Vol. 22, No. 14-17, 15.07.2003, p. 1917-1920.

Research output: Contribution to journalArticle

Kumagai, Hitoshi ; Oka, Yoshimi ; Kawata, Satoshi ; Ohba, Masaaki ; Inoue, Katsuya ; Kurmoo, Mohamedally ; Okawa, Hisashi. / Hydrothermal synthesis, crystal structure and characterization of a new hexanuclear cobalt(II) complex comprised of octahedral and tetrahedral cobalt ions. In: Polyhedron. 2003 ; Vol. 22, No. 14-17. pp. 1917-1920.
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