Author:
Kubel F.,Hagemann H.,Bill H.
Abstract
Abstract
Barium in BaMgF4 and in Ba6Mg7F26 can be partially replaced by Sr or Eu. The single crystal structural analysis of the title compounds (a = 409.06 pm, b = 1452.7 pm, c = 579.02 pm, space group Cmc21 for Ba0.78(3)Eu0.22(3)MgF4 [Z = 2, R
w = 0.023 for 998 reflections] and a = 583.47 pm, b = 1209.09 pm and c = 1506.56 pm, space group Immm for Ba5.20(6)Eu0.80(6) · Mg7F26) MgF4 [Z = 2, R
w = 0.019 for 2694 reflections] confirms the substitution of barium by europium. A split refinement of the substituted barium site in both crystals reveals a trend of europium to get closer to the nearest fluoride neighbors by simultaneously reducing the coordination sphere.
Subject
Inorganic Chemistry,Condensed Matter Physics,General Materials Science
Cited by
13 articles.
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