The material structure described by Ti4Ni4Ge7 crystallizes in the tetragonal I4/mmm space group. There are two inequivalent Ti sites. In the first Ti site, Ti(1) is bonded in a 6-coordinate geometry to two equivalent Ge(2), two equivalent Ge(4), and three equivalent Ge(3) atoms. In the second Ti site, Ti(2) is bonded to one Ge(1), two equivalent Ge(2), two equivalent Ge(3), and two equivalent Ge(4) atoms to form a mixture of distorted edge, corner, and face-sharing TiGe7 pentagonal bipyramids. Ni(1) is bonded in a 6-coordinate geometry to two equivalent Ge(1), two equivalent Ge(3), and two equivalent Ge(4) atoms. There are four inequivalent Ge sites. In the first Ge site, Ge(1) is bonded in a 6-coordinate geometry to one Ti(2), four equivalent Ni(1), and one Ge(1) atom. In the second Ge site, Ge(2) is bonded in a 10-coordinate geometry to four equivalent Ti(1), four equivalent Ti(2), and two equivalent Ge(2) atoms. In the third Ge site, Ge(3) is bonded in a 9-coordinate geometry to two equivalent Ti(2), three equivalent Ti(1), and four equivalent Ni(1) atoms. In the fourth Ge site, Ge(4) is bonded in a 8-coordinate geometry to two equivalent Ti(1), two equivalent Ti(2), and four equivalent Ni(1) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_Ti4Ni4Ge7
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   9.525
_cell_length_b   9.525
_cell_length_c   9.525
_cell_angle_alpha   94.148
_cell_angle_beta   94.148
_cell_angle_gamma   148.797
_symmetry_Int_Tables_number   1
_cell_volume   431.145
_cell_formula_units_Z   2
loop_
 _symmetry_equiv_pos_site_id
 _symmetry_equiv_pos_as_xyz
  1  'x, y, z'
loop_
 _atom_site_type_symbol
 _atom_site_label
 _atom_site_symmetry_multiplicity
 _atom_site_fract_x
 _atom_site_fract_y
 _atom_site_fract_z
 _atom_site_occupancy
  Ti  Ti0  1  0.135  0.135  0.270  1.0
  Ti  Ti1  1  0.865  0.865  0.730  1.0
  Ti  Ti2  1  0.865  0.135  0.000  1.0
  Ti  Ti3  1  0.135  0.865  0.000  1.0
  Ti  Ti4  1  0.500  0.311  0.811  1.0
  Ti  Ti5  1  0.500  0.689  0.189  1.0
  Ti  Ti6  1  0.689  0.500  0.189  1.0
  Ti  Ti7  1  0.311  0.500  0.811  1.0
  Ni  Ni8  1  0.400  0.900  0.799  1.0
  Ni  Ni9  1  0.100  0.600  0.201  1.0
  Ni  Ni10  1  0.100  0.900  0.500  1.0
  Ni  Ni11  1  0.400  0.600  0.500  1.0
  Ni  Ni12  1  0.600  0.400  0.500  1.0
  Ni  Ni13  1  0.900  0.100  0.500  1.0
  Ni  Ni14  1  0.900  0.400  0.799  1.0
  Ni  Ni15  1  0.600  0.100  0.201  1.0
  Ge  Ge16  1  0.500  0.096  0.596  1.0
  Ge  Ge17  1  0.500  0.904  0.404  1.0
  Ge  Ge18  1  0.904  0.500  0.404  1.0
  Ge  Ge19  1  0.096  0.500  0.596  1.0
  Ge  Ge20  1  0.751  0.751  0.000  1.0
  Ge  Ge21  1  0.249  0.249  0.000  1.0
  Ge  Ge22  1  0.299  0.299  0.598  1.0
  Ge  Ge23  1  0.701  0.701  0.402  1.0
  Ge  Ge24  1  0.701  0.299  0.000  1.0
  Ge  Ge25  1  0.299  0.701  0.000  1.0
  Ge  Ge26  1  0.000  0.280  0.280  1.0
  Ge  Ge27  1  0.000  0.720  0.720  1.0
  Ge  Ge28  1  0.720  0.000  0.720  1.0
  Ge  Ge29  1  0.280  0.000  0.280  1.0
[/CIF]
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The material structure described by Ti4Ni4Ge7 crystallizes in the tetragonal I4/mmm space group. There are two inequivalent Ti sites. In the first Ti site, Ti(1) is bonded in a 6-coordinate geometry to two equivalent Ge(2), two equivalent Ge(4), and three equivalent Ge(3) atoms. In the second Ti site, Ti(2) is bonded to one Ge(1), two equivalent Ge(2), two equivalent Ge(3), and two equivalent Ge(4) atoms to form a mixture of distorted edge, corner, and face-sharing TiGe7 pentagonal bipyramids. Ni(1) is bonded in a 6-coordinate geometry to two equivalent Ge(1), two equivalent Ge(3), and two equivalent Ge(4) atoms. There are four inequivalent Ge sites. In the first Ge site, Ge(1) is bonded in a 6-coordinate geometry to one Ti(2), four equivalent Ni(1), and one Ge(1) atom. In the second Ge site, Ge(2) is bonded in a 10-coordinate geometry to four equivalent Ti(1), four equivalent Ti(2), and two equivalent Ge(2) atoms. In the third Ge site, Ge(3) is bonded in a 9-coordinate geometry to two equivalent Ti(2), three equivalent Ti(1), and four equivalent Ni(1) atoms. In the fourth Ge site, Ge(4) is bonded in a 8-coordinate geometry to two equivalent Ti(1), two equivalent Ti(2), and four equivalent Ni(1) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_Ti4Ni4Ge7
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   9.525
_cell_length_b   9.525
_cell_length_c   9.525
_cell_angle_alpha   94.148
_cell_angle_beta   94.148
_cell_angle_gamma   148.797
_symmetry_Int_Tables_number   1
_cell_volume   431.145
_cell_formula_units_Z   2
loop_
 _symmetry_equiv_pos_site_id
 _symmetry_equiv_pos_as_xyz
  1  'x, y, z'
loop_
 _atom_site_type_symbol
 _atom_site_label
 _atom_site_symmetry_multiplicity
 _atom_site_fract_x
 _atom_site_fract_y
 _atom_site_fract_z
 _atom_site_occupancy
  Ti  Ti0  1  0.135  0.135  0.270  1.0
  Ti  Ti1  1  0.865  0.865  0.730  1.0
  Ti  Ti2  1  0.865  0.135  0.000  1.0
  Ti  Ti3  1  0.135  0.865  0.000  1.0
  Ti  Ti4  1  0.500  0.311  0.811  1.0
  Ti  Ti5  1  0.500  0.689  0.189  1.0
  Ti  Ti6  1  0.689  0.500  0.189  1.0
  Ti  Ti7  1  0.311  0.500  0.811  1.0
  Ni  Ni8  1  0.400  0.900  0.799  1.0
  Ni  Ni9  1  0.100  0.600  0.201  1.0
  Ni  Ni10  1  0.100  0.900  0.500  1.0
  Ni  Ni11  1  0.400  0.600  0.500  1.0
  Ni  Ni12  1  0.600  0.400  0.500  1.0
  Ni  Ni13  1  0.900  0.100  0.500  1.0
  Ni  Ni14  1  0.900  0.400  0.799  1.0
  Ni  Ni15  1  0.600  0.100  0.201  1.0
  Ge  Ge16  1  0.500  0.096  0.596  1.0
  Ge  Ge17  1  0.500  0.904  0.404  1.0
  Ge  Ge18  1  0.904  0.500  0.404  1.0
  Ge  Ge19  1  0.096  0.500  0.596  1.0
  Ge  Ge20  1  0.751  0.751  0.000  1.0
  Ge  Ge21  1  0.249  0.249  0.000  1.0
  Ge  Ge22  1  0.299  0.299  0.598  1.0
  Ge  Ge23  1  0.701  0.701  0.402  1.0
  Ge  Ge24  1  0.701  0.299  0.000  1.0
  Ge  Ge25  1  0.299  0.701  0.000  1.0
  Ge  Ge26  1  0.000  0.280  0.280  1.0
  Ge  Ge27  1  0.000  0.720  0.720  1.0
  Ge  Ge28  1  0.720  0.000  0.720  1.0
  Ge  Ge29  1  0.280  0.000  0.280  1.0
[/CIF]
.