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Nb3Ge crystallizes in the cubic Pm-3n space group. The structure is three-dimensional. Nb is bonded in a 6-coordinate geometry to two equivalent Nb and four equivalent Ge atoms. Both Nb–Nb bond lengths are 2.59 Å. All Nb–Ge bond lengths are 2.89 Å. Ge is bonded to twelve equivalent Nb atoms to form a mixture of edge and face-sharing GeNb12 cuboctahedra.
Nb5Ge3 crystallizes in the tetragonal I4/mcm space group. The structure is three-dimensional. there are two inequivalent Nb sites. In the first Nb site, Nb is bonded in a 6-coordinate geometry to six Ge atoms. There are a spread of Nb–Ge bond distances ranging from 2.71–2.98 Å. In the second Nb site, Nb is bonded in a 6-coordinate geometry to two equivalent Nb and four equivalent Ge atoms. Both Nb–Nb bond lengths are 2.59 Å. All Nb–Ge bond lengths are 2.73 Å. There are two inequivalent Ge sites. In the first Ge site, Ge is bonded in a 10-coordinate geometry to ten Nb atoms. In the second Ge site, Ge is bonded in a 10-coordinate geometry to eight equivalent Nb and two equivalent Ge atoms. Both Ge–Ge bond lengths are 2.59 Å.
Nb5Ge3 crystallizes in the hexagonal P6_3/mcm space group. The structure is three-dimensional. there are two inequivalent Nb sites. In the first Nb site, Nb is bonded in a 5-coordinate geometry to five equivalent Ge atoms. There are a spread of Nb–Ge bond distances ranging from 2.65–2.90 Å. In the second Nb site, Nb is bonded in a 6-coordinate geometry to six equivalent Ge atoms. All Nb–Ge bond lengths are 2.73 Å. Ge is bonded in a 9-coordinate geometry to nine Nb atoms.
NbGe2 is Titanium Disilicide-like structured and crystallizes in the hexagonal P6_222 space group. The structure is three-dimensional. Nb is bonded in a 10-coordinate geometry to ten equivalent Ge atoms. There are a spread of Nb–Ge bond distances ranging from 2.71–2.92 Å. Ge is bonded in a 10-coordinate geometry to five equivalent Nb and five equivalent Ge atoms. There are a spread of Ge–Ge bond distances ranging from 2.69–2.92 Å.
Nb5Ge3 crystallizes in the tetragonal I4/mcm space group. The structure is three-dimensional. there are two inequivalent Nb sites. In the first Nb site, Nb is bonded in a 6-coordinate geometry to one Nb and six Ge atoms. The Nb–Nb bond length is 2.97 Å. There are a spread of Nb–Ge bond distances ranging from 2.66–3.00 Å. In the second Nb site, Nb is bonded in a 8-coordinate geometry to six Nb and two equivalent Ge atoms. Both Nb–Nb bond lengths are 2.58 Å. Both Nb–Ge bond lengths are 2.62 Å. There are two inequivalent Ge sites. In the first Ge site, Ge is bonded in a 10-coordinate geometry to eight equivalent Nb and two equivalent Ge atoms. Both Ge–Ge bond lengths are 2.58 Å. In the second Ge site, Ge is bonded in a 9-coordinate geometry to nine Nb atoms.
Nb3Ge is Uranium Silicide structured and crystallizes in the cubic Pm-3m space group. The structure is three-dimensional. Nb is bonded to eight equivalent Nb and four equivalent Ge atoms to form distorted NbNb8Ge4 cuboctahedra that share corners with twelve equivalent NbNb8Ge4 cuboctahedra, edges with eight equivalent GeNb12 cuboctahedra, edges with sixteen equivalent NbNb8Ge4 cuboctahedra, faces with four equivalent GeNb12 cuboctahedra, and faces with fourteen equivalent NbNb8Ge4 cuboctahedra. All Nb–Nb bond lengths are 2.91 Å. All Nb–Ge bond lengths are 2.91 Å. Ge is bonded to twelve equivalent Nb atoms to form GeNb12 cuboctahedra that share corners with twelve equivalent GeNb12 cuboctahedra, edges with twenty-four equivalent NbNb8Ge4 cuboctahedra, faces with six equivalent GeNb12 cuboctahedra, and faces with twelve equivalent NbNb8Ge4 cuboctahedra.
Nb3Ge crystallizes in the tetragonal P4_2/n space group. The structure is three-dimensional. there are three inequivalent Nb sites. In the first Nb site, Nb is bonded in a 2-coordinate geometry to two equivalent Ge atoms. There are one shorter (2.67 Å) and one longer (2.72 Å) Nb–Ge bond lengths. In the second Nb site, Nb is bonded in a 4-coordinate geometry to four equivalent Ge atoms. There are a spread of Nb–Ge bond distances ranging from 2.65–2.73 Å. In the third Nb site, Nb is bonded in a 3-coordinate geometry to three equivalent Ge atoms. There are a spread of Nb–Ge bond distances ranging from 2.62–2.84 Å. Ge is bonded in a 9-coordinate geometry to nine Nb atoms.
Nb3Ge crystallizes in the tetragonal I4/mcm space group. The structure is three-dimensional. there are three inequivalent Nb sites. In the first Nb site, Nb is bonded in a 4-coordinate geometry to two equivalent Nb and four equivalent Ge atoms. Both Nb–Nb bond lengths are 2.85 Å. There are a spread of Nb–Ge bond distances ranging from 2.75–3.01 Å. In the second Nb site, Nb is bonded in a 4-coordinate geometry to two equivalent Nb and four equivalent Ge atoms. Both Nb–Nb bond lengths are 2.66 Å. All Nb–Ge bond lengths are 2.72 Å. In the third Nb site, Nb is bonded in a distorted q6 geometry to ten Nb atoms. Both Nb–Nb bond lengths are 2.66 Å. Ge is bonded in a 10-coordinate geometry to ten Nb atoms.