Materials Data on NbGeSb by Materials Project
NbGeSb is Matlockite structured and crystallizes in the tetragonal P4/nmm space group. The structure is three-dimensional. Nb is bonded in a 9-coordinate geometry to four equivalent Ge and five equivalent Sb atoms. All Nb–Ge bond lengths are 2.77 Å. There are four shorter (2.90 Å) and one longer (3.06 Å) Nb–Sb bond lengths. Ge is bonded in a 8-coordinate geometry to four equivalent Nb and four equivalent Ge atoms. All Ge–Ge bond lengths are 2.65 Å. Sb is bonded in a 5-coordinate geometry to five equivalent Nb atoms.