Synthesis, Structure, and Magnetic Properties of Hydroxo-Bridged Vanadium Oxalate V2O2(OH)2(C2O4)(H2O)2

The reaction of V2O5 with H2C2O4·2H2O in the presence of H3BO3 under hydrothermal conditions has afforded V2O2(OH)2(C2O4)(H2O)2 (1), which crystallizes in the triclinic system, space group P$\bar {1}$ with a = 5.2405(10) Å, b = 5.7340(11) Å, c = 7.1778(14) Å, α = 76.44(3)°, β = 69.37(3)°, γ = 75.37(...

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Published inEuropean Journal of Inorganic Chemistry Vol. 2006; no. 14; pp. 2850 - 2854
Main Authors Yang, Sihai, Li, Guobao, Tian, Shujian, Liao, Fuhui, Lin, Jianhua
Format Book Review
LanguageEnglish
Published Weinheim WILEY-VCH Verlag 01.07.2006
WILEY‐VCH Verlag
Subjects
Bridging ligands
Dimers
Magnetic properties
Oxalates
Vanadium
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Summary:The reaction of V2O5 with H2C2O4·2H2O in the presence of H3BO3 under hydrothermal conditions has afforded V2O2(OH)2(C2O4)(H2O)2 (1), which crystallizes in the triclinic system, space group P$\bar {1}$ with a = 5.2405(10) Å, b = 5.7340(11) Å, c = 7.1778(14) Å, α = 76.44(3)°, β = 69.37(3)°, γ = 75.37(3)°. The vanadium atoms in 1 form dimers by sharing edges consisting of μ‐OH groups, and these dimers are connected further by oxalate ligands to form chains. The magnetic susceptibility data of 1 fit excellently with the Heisenberg dimer model in the temperature interval 2–300 K. Compound 1 is antiferromagnetic with a J value of –29.6 cm–1. (© Wiley‐VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2006)
Bibliography:istex:4B96AC694B9E87A1E64897C672B2752530F3A04D
ArticleID:EJIC200600103
ark:/67375/WNG-FVFDC61P-X
ISSN:1434-1948
1099-0682
DOI:10.1002/ejic.200600103