Zintlphasen mit binären Anionen: Zur Kenntnis von BaGe2P2 und BaGe2As2 / Zintl Phases with Binary Anions: BaGe2P2 and BaGe2As2

Brigitte Eisenmann 1  and Herbert Schäfer 1
  • 1 Abteilung II für Anorganische Chemie im Eduard-Zintl-Institut der Technischen Hochschule in Darmstadt, Hochschulstraße 4, D-6100 Darmstadt


The new isotypic compounds BaGe2P2 and BaGe2As2 crystallize in the tetragonal system (P42mc) with the following lattice constants:

BaGe2P2: a = 761.8 ± 0.5 pm, c = 850.0 ± 0.5 pm, c/a = 1.12,

BaGe2As2: a = 778.6 ± 0.5 pm, c = 866.4 ± 0.5 pm, c/a = 1.11.

Fourbonded Ge atoms and twobonded P (As) atoms form a three-dimensional network. The Ba atoms are located in tubelike holes.

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Zeitschrift für Naturforschung B is an international scientific journal which publishes original papers, microreviews, and letters from all areas of inorganic chemistry, solid state chemistry, coordination chemistry, molecular chemistry, and organic chemistry.