Synthesis and Crystal Structure of Ca2Ag1.83Al0.67Ge1.50 – A Solid Solution with the NbCoB-type structure

Siméon Ponou (1)

1 Inorganic Chemistry

Abstract: The crystal structure of the new phase, Ca2Ag1.83Al0.67Ge1.50(1) (1) was determined by single crystal X-ray diffraction, after the compound was obtained by high temperature synthesis technique. 1 crystallizes with the NbCoB type structure in the orthorhombic space group Pmmn (no. 59) with unit cell parameters: a = 20.505(1) Å, b = 4.3807(2) Å, c = 7.2211(3) Å, V = 648.65 Å3 ( Z = 5). The structure of the title compound represent a rare intergrowth of the well known KHg2 (or CeCu2) and Fe2P type structures.

Mots clés: Physical Sciences

Siméon Ponou. Synthesis and Crystal Structure of Ca2Ag1.83Al0.67Ge1.50 – A Solid Solution with the NbCoB-type structure. Journal of Inorganic and General Chemistry / Zeitschrift für anorganische und allgemeine Chemie, 2009, 635 (13-14), pp.2143. ⟨10.1002/zaac.200900156⟩. ⟨hal-00507130⟩