TY - JOUR
T1 - Synthesis and structure of a new germanate fluoride
T2 - NaCa2GeO4F1
AU - Schneemeyer, L. F.
AU - Guterman, Lila
AU - Siegrist, T.
AU - Kowach, G. R.
PY - 2001
Y1 - 2001
N2 - We report the synthesis and structural characterization of a new oxoanion halide, NaCa2GeO4F. Crystal data: FW=235.74, Pnma (No. 62), orthorhombic, a=5.362(2), b=7.328(3), c=12.681(4) Å, V=498.3(3) Å3, Z=4, R(F)=0.044, Rw(F)=0.046 for 404 averaged reflections. Compositionally, this material can be viewed as the end-member of the hypothetical solid solution Ca2GeO4·(CaO)1-x·(NaF) x. However, in this unusual oxyfluoride, the fluoride ion orders and fully occupies one anion site. The structure consists of complicated condensed chains of six-coordinated cations centered by fluoride ions and linked by chains of isolated germanium oxide tetrahedra. The structure is best described in terms of the anion packing rather than the packing of cation-centered coordination polyhedra.
AB - We report the synthesis and structural characterization of a new oxoanion halide, NaCa2GeO4F. Crystal data: FW=235.74, Pnma (No. 62), orthorhombic, a=5.362(2), b=7.328(3), c=12.681(4) Å, V=498.3(3) Å3, Z=4, R(F)=0.044, Rw(F)=0.046 for 404 averaged reflections. Compositionally, this material can be viewed as the end-member of the hypothetical solid solution Ca2GeO4·(CaO)1-x·(NaF) x. However, in this unusual oxyfluoride, the fluoride ion orders and fully occupies one anion site. The structure consists of complicated condensed chains of six-coordinated cations centered by fluoride ions and linked by chains of isolated germanium oxide tetrahedra. The structure is best described in terms of the anion packing rather than the packing of cation-centered coordination polyhedra.
UR - http://www.scopus.com/inward/record.url?scp=0034817088&partnerID=8YFLogxK
U2 - 10.1006/jssc.2001.9153
DO - 10.1006/jssc.2001.9153
M3 - Article
AN - SCOPUS:0034817088
SN - 0022-4596
VL - 160
SP - 33
EP - 38
JO - Journal of Solid State Chemistry
JF - Journal of Solid State Chemistry
IS - 1
ER -