The structure described by CrTi2O5 crystallizes in the monoclinic C2/c space group. Ti(1) is bonded in a 6-coordinate geometry to one O(1), two equivalent O(3), and three equivalent O(2) atoms. Cr(1) is bonded to two equivalent O(1), two equivalent O(2), and two equivalent O(3) atoms to form corner-sharing CrO6 octahedra. The corner-sharing octahedral tilt angles are 63°. There are three inequivalent O sites. In the first O site, O(1) is bonded to two equivalent Ti(1) and two equivalent Cr(1) atoms to form OTi2Cr2 trigonal pyramids that share corners with two equivalent O(1)Ti2Cr2 trigonal pyramids, corners with two equivalent O(2)Ti3Cr trigonal pyramids, and edges with four equivalent O(2)Ti3Cr trigonal pyramids. In the second O site, O(2) is bonded to three equivalent Ti(1) and one Cr(1) atom to form distorted OTi3Cr trigonal pyramids that share  a cornercorner with one O(1)Ti2Cr2 trigonal pyramid, corners with three equivalent O(2)Ti3Cr trigonal pyramids, edges with two equivalent O(1)Ti2Cr2 trigonal pyramids, and edges with two equivalent O(2)Ti3Cr trigonal pyramids. In the third O site, O(3) is bonded in a distorted trigonal planar geometry to two equivalent Ti(1) and one Cr(1) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_Ti2CrO5
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.200
_cell_length_b   5.773
_cell_length_c   7.068
_cell_angle_alpha   72.917
_cell_angle_beta   90.000
_cell_angle_gamma   116.766
_symmetry_Int_Tables_number   1
_cell_volume   178.915
_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
  Cr  Cr0  1  0.000  0.000  1.000  1.0
  Cr  Cr1  1  1.000  0.000  0.500  1.0
  O  O2  1  0.208  1.000  0.750  1.0
  O  O3  1  0.792  0.000  0.250  1.0
  O  O4  1  0.729  0.167  0.557  1.0
  O  O5  1  0.562  0.833  0.943  1.0
  O  O6  1  0.271  0.833  0.443  1.0
  O  O7  1  0.438  0.167  0.057  1.0
  O  O8  1  0.608  0.592  0.670  1.0
  O  O9  1  0.017  0.408  0.830  1.0
  O  O10  1  0.392  0.408  0.330  1.0
  O  O11  1  0.983  0.592  0.170  1.0
  Ti  Ti12  1  0.383  0.731  0.220  1.0
  Ti  Ti13  1  0.651  0.269  0.280  1.0
  Ti  Ti14  1  0.349  0.731  0.720  1.0
  Ti  Ti15  1  0.617  0.269  0.780  1.0
[/CIF]
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The structure described by CrTi2O5 crystallizes in the monoclinic C2/c space group. Ti(1) is bonded in a 6-coordinate geometry to one O(1), two equivalent O(3), and three equivalent O(2) atoms. Cr(1) is bonded to two equivalent O(1), two equivalent O(2), and two equivalent O(3) atoms to form corner-sharing CrO6 octahedra. The corner-sharing octahedral tilt angles are 63°. There are three inequivalent O sites. In the first O site, O(1) is bonded to two equivalent Ti(1) and two equivalent Cr(1) atoms to form OTi2Cr2 trigonal pyramids that share corners with two equivalent O(1)Ti2Cr2 trigonal pyramids, corners with two equivalent O(2)Ti3Cr trigonal pyramids, and edges with four equivalent O(2)Ti3Cr trigonal pyramids. In the second O site, O(2) is bonded to three equivalent Ti(1) and one Cr(1) atom to form distorted OTi3Cr trigonal pyramids that share  a cornercorner with one O(1)Ti2Cr2 trigonal pyramid, corners with three equivalent O(2)Ti3Cr trigonal pyramids, edges with two equivalent O(1)Ti2Cr2 trigonal pyramids, and edges with two equivalent O(2)Ti3Cr trigonal pyramids. In the third O site, O(3) is bonded in a distorted trigonal planar geometry to two equivalent Ti(1) and one Cr(1) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_Ti2CrO5
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.200
_cell_length_b   5.773
_cell_length_c   7.068
_cell_angle_alpha   72.917
_cell_angle_beta   90.000
_cell_angle_gamma   116.766
_symmetry_Int_Tables_number   1
_cell_volume   178.915
_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
  Cr  Cr0  1  0.000  0.000  1.000  1.0
  Cr  Cr1  1  1.000  0.000  0.500  1.0
  O  O2  1  0.208  1.000  0.750  1.0
  O  O3  1  0.792  0.000  0.250  1.0
  O  O4  1  0.729  0.167  0.557  1.0
  O  O5  1  0.562  0.833  0.943  1.0
  O  O6  1  0.271  0.833  0.443  1.0
  O  O7  1  0.438  0.167  0.057  1.0
  O  O8  1  0.608  0.592  0.670  1.0
  O  O9  1  0.017  0.408  0.830  1.0
  O  O10  1  0.392  0.408  0.330  1.0
  O  O11  1  0.983  0.592  0.170  1.0
  Ti  Ti12  1  0.383  0.731  0.220  1.0
  Ti  Ti13  1  0.651  0.269  0.280  1.0
  Ti  Ti14  1  0.349  0.731  0.720  1.0
  Ti  Ti15  1  0.617  0.269  0.780  1.0
[/CIF]
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