Synthesis, molecular structure and magnetic properties of di-μ-hydroxo-bis-(bis(1,3-bis(2-hydroxyphenyl)-1,3-propanedione)chromium(III)) bistoluene

F. Teixidor, J. Colomer, J. Casabó, E. Molins, C. Miravitlles, F. Palacio

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Abstract

The title compound [Cr2(bhppH2)4(OH)2]·2C7H8 has been synthesized and isolated by chromatographic techniques from the reaction between 1,3-bis(2- hydroxyphenyl)-l,3-propanedione (bhppH3) and Cr(NO3)3·9H2O. Well formed single crystals were grown from toluene solutions and characterized by X-ray diffraction methods being triclinic, space group P1, with a = 12.692(2), b = 13.423(2), c = 21.983(4) Å, α= 102.24(1), β = 92.04(1), γ = 115.72(1)°, V= 3.262(6) Å3, Z = 2, Dx = 1.370 g cm-3 and μ = 3.9 cm-1, F(000) = 1.396. Magnetic susceptibilities were measured from 50 down to 4.2 K and fitted using the simplest Hamiltonian for exchange coupled systems {A figure is presented} = -2JS1S2. The best results were obtained with J=-4.1 cm-1 and g= 1.85. These values are compared with the Glerup, Hodgson and Pedersen (GHP) model. © 1988.
Original languageEnglish
Pages (from-to)151-157
JournalInorganica Chimica Acta
Volume147
Issue number2
DOIs
Publication statusPublished - 15 Jul 1988

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