A(5)RE(4)X[TO4](4) crystal growth: Fluoride flux synthesis of Na(5)Ln(4)F [GeO4](4) (Ln = Pr, Nd), the first quaternary germanate oxyfluorides

作者：Latshaw Allison M; Wilkins Branford O; Morrison Gregory; Smith Mark D; zur Loye Hans Conrad

来源：Journal of Solid State Chemistry, 2016, 239: 200-203.

DOI：10.1016/j.jssc.2016.04.038

• Na5Pr4F[GeO4](4)
• Na5Nd4F[GeO4](4)
• Germanate oxyfluoride
• Fluoride flux crystal growth

Crystals of Na5Pr4F[GeO4](4) and Na5Nd4F[GeO4](4) were synthesized using a eutectic sodium fluoride, sodium chloride flux. Both compounds crystallize in the tetragonal space group 1-4 with lattice parameters of a=12.1173(4) angstrom and c=5.6795(2) angstrom (Pr) and of a=12.0642(17) angstrom and c=5.6674(11) angstrom (Nd). The structure of the reported compounds is three-dimensional with face and corner sharing lanthanide polyhedra which edge and corner share with isolated germanium tetrahedra. These novel compositions represent the first example of quaternary germanium containing oxyfluorides.

• 出版日期2016-7