Zur Magnetochemie der Fluoroargentate(II): Messungen an Ba[AgF4], Sr[AgF4], Ba2AgF6 sowie K[AgF3] und Cs[AgF3]

Magnetochemistry of Fluoroargentates(II): Investigation of Ba[AgF₄], Sr[AgF₄], Ba₂AgF₆, K[AgF₃], and Cs[AgF₃] Ba[AgF₄] (Θ = -4 K, μ = 1.9₂ μ_B), isostructural with K[BrF₄] with planar [AgF₄] groups, fullfil the Curie-Weiss-law, also Ba₂AgF₆ (Θ = 4 K, Θ = 1.8₅ μ_B) which is related with the structure of Ba₂CuF₆. The variante of perovskite-type K[AgF₃] (orthorhombic) and Cs[AgF₃] (tetragonal perovscite) show collective magnetic interactions (T_N = 80 K, KAgF₃, and 50 K, CsAgF₃) and show a behaviour like AgF₂ (T_N160 K) correspondingly to the magnetic dilution. Above T_N paramagnetism is nearly independend of tempearture.