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

doi:10.1016/S0277-5387(03)00139-6

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

Inorganic and Analytical Chemistry

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37 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 language	English
Pages (from-to)	1917-1920
Number of pages	4
Journal	Polyhedron
Volume	22
Issue number	14-17
DOIs	https://doi.org/10.1016/S0277-5387(03)00139-6
Publication status	Published - Jul 15 2003

All Science Journal Classification (ASJC) codes

Physical and Theoretical Chemistry
Inorganic Chemistry
Materials Chemistry

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

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.",

author = "Hitoshi Kumagai and Yoshimi Oka and Satoshi Kawata and Masaaki Ohba and Katsuya Inoue and Mohamedally Kurmoo and Hisashi Okawa",

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T1 - Hydrothermal synthesis, crystal structure and characterization of a new hexanuclear cobalt(II) complex comprised of octahedral and tetrahedral cobalt ions

AU - Kumagai, Hitoshi

AU - Oka, Yoshimi

AU - Kawata, Satoshi

AU - Ohba, Masaaki

AU - Inoue, Katsuya

AU - Kurmoo, Mohamedally

AU - Okawa, Hisashi

PY - 2003/7/15

Y1 - 2003/7/15

N2 - 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.

AB - 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.

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M3 - Article

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JO - Polyhedron

JF - Polyhedron

SN - 0277-5387

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

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