Sc2(NbGe)3 crystallizes in the orthorhombic Amm2 space group. There are three inequivalent Sc sites. In the first Sc site, Sc(1) is bonded in a 5-coordinate geometry to one Ge(1), two equivalent Ge(2), and two equivalent Ge(3) atoms. In the second Sc site, Sc(2) is bonded in a 5-coordinate geometry to one Ge(1), two equivalent Ge(2), and two equivalent Ge(4) atoms. In the third Sc site, Sc(3) is bonded in a 5-coordinate geometry to one Ge(3), two equivalent Ge(1), and two equivalent Ge(4) atoms. There are two inequivalent Nb sites. In the first Nb site, Nb(1) is bonded in a 5-coordinate geometry to one Ge(3), two equivalent Ge(2), and two equivalent Ge(4) atoms. In the second Nb site, Nb(2) is bonded in a 6-coordinate geometry to one Ge(1), one Ge(3), two equivalent Ge(2), and two equivalent Ge(4) atoms. There are four inequivalent Ge sites. In the first Ge site, Ge(1) is bonded in a 9-coordinate geometry to one Sc(1), two equivalent Sc(2), two equivalent Sc(3), and four equivalent Nb(2) atoms. In the second Ge site, Ge(2) is bonded in a 9-coordinate geometry to one Sc(1), two equivalent Sc(2), two equivalent Nb(1), and four equivalent Nb(2) atoms. In the third Ge site, Ge(3) is bonded in a 9-coordinate geometry to one Sc(3), two equivalent Sc(1), two equivalent Nb(1), and four equivalent Nb(2) atoms. In the fourth Ge site, Ge(4) is bonded in a 9-coordinate geometry to one Sc(3), two equivalent Sc(2), two equivalent Nb(1), and four equivalent Nb(2) atoms.
Sc2(NbGe)3 crystallizes in the orthorhombic Amm2 space group. There are three inequivalent Sc sites. In the first Sc site, Sc(1) is bonded in a 5-coordinate geometry to one Ge(1), two equivalent Ge(2), and two equivalent Ge(3) atoms. The Sc(1)-Ge(1) bond length is 2.82 Å. Both Sc(1)-Ge(2) bond lengths are 2.69 Å. Both Sc(1)-Ge(3) bond lengths are 2.92 Å. In the second Sc site, Sc(2) is bonded in a 5-coordinate geometry to one Ge(1), two equivalent Ge(2), and two equivalent Ge(4) atoms. The Sc(2)-Ge(1) bond length is 2.70 Å. There is one shorter (2.68 Å) and one longer (2.80 Å) Sc(2)-Ge(2) bond length. Both Sc(2)-Ge(4) bond lengths are 2.91 Å. In the third Sc site, Sc(3) is bonded in a 5-coordinate geometry to one Ge(3), two equivalent Ge(1), and two equivalent Ge(4) atoms. The Sc(3)-Ge(3) bond length is 2.83 Å. Both Sc(3)-Ge(1) bond lengths are 2.92 Å. Both Sc(3)-Ge(4) bond lengths are 2.68 Å. There are two inequivalent Nb sites. In the first Nb site, Nb(1) is bonded in a 5-coordinate geometry to one Ge(3), two equivalent Ge(2), and two equivalent Ge(4) atoms. The Nb(1)-Ge(3) bond length is 2.68 Å. Both Nb(1)-Ge(2) bond lengths are 2.88 Å. There is one shorter (2.67 Å) and one longer (2.73 Å) Nb(1)-Ge(4) bond length. In the second Nb site, Nb(2) is bonded in a 6-coordinate geometry to one Ge(1), one Ge(3), two equivalent Ge(2), and two equivalent Ge(4) atoms. The Nb(2)-Ge(1) bond length is 2.79 Å. The Nb(2)-Ge(3) bond length is 2.80 Å. There is one shorter (2.76 Å) and one longer (2.78 Å) Nb(2)-Ge(2) bond length. There is one shorter (2.78 Å) and one longer (2.79 Å) Nb(2)-Ge(4) bond length. There are four inequivalent Ge sites. In the first Ge site, Ge(1) is bonded in a 9-coordinate geometry to one Sc(1), two equivalent Sc(2), two equivalent Sc(3), and four equivalent Nb(2) atoms. In the second Ge site, Ge(2) is bonded in a 9-coordinate geometry to one Sc(1), two equivalent Sc(2), two equivalent Nb(1), and four equivalent Nb(2) atoms. In the third Ge site, Ge(3) is bonded in a 9-coordinate geometry to one Sc(3), two equivalent Sc(1), two equivalent Nb(1), and four equivalent Nb(2) atoms. In the fourth Ge site, Ge(4) is bonded in a 9-coordinate geometry to one Sc(3), two equivalent Sc(2), two equivalent Nb(1), and four equivalent Nb(2) atoms.