Über die systeme alkalimetallbromid/kobalt(II)-bromid

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Abstract

The systems alkalibromide/CoBr2 were investigated by means of difference-thermal-analysis. The compounds CsCoBr3, Cs2CoBr4, Cs3CoBr5; RbCoBr3, Rb2CoBr4; α- and β-K2CoBr4 were found. The system NaBr/CoBr2 is eutectical. LiBr and CoBr2 also form an eutectical system, but with partial miscibility at both sides. The 1:1-compounds cristallize in the CsNiCl3-type, in the 2:1- and 3:1-compounds the Co2+ is tetrahedrally coordinated by Br.

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Cited by (47)

  • Local environments for Cs(1) and Cs(2) sites in a perovskite Cs<inf>2</inf>CoBr<inf>4</inf> single crystal with a dominant magnetic type based on the observed spin-lattice relaxation time

    2017, Journal of Molecular Structure
    Citation Excerpt :

    The Cs2CoBr4 single crystal is orthorhombic with the space group Pnam (D2h16) and four molecules per unit cell. The lattice parameters are a = 10.181 Å, b = 7.723 Å, and c = 13.492 Å at room temperature [19]. The structure is illustrated in Fig. 1(a) and consists of a CoBr42- tetrahedral arranged in layers (bc-plane) that are separated along the a-axis by Cs+ ions [20].

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Neue Anschrift: Abteilung Chemie, GH Kassel, 35 Kassel Heinrich-Plett-Str. 40.

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