The structure described by MgLaTa2CuO7Cl crystallizes in the orthorhombic Pmm2 space group. Mg(1) is bonded to one O(2), two equivalent O(5), and two equivalent Cl(1) atoms to form distorted MgCl2O3 trigonal bipyramids that share corners with two equivalent La(1)O12 cuboctahedra, corners with four equivalent Mg(1)Cl2O3 trigonal bipyramids, and edges with two equivalent Ta(1)O6 octahedra. La(1) is bonded to two equivalent O(1), two equivalent O(2), two equivalent O(3), two equivalent O(4), and four equivalent O(7) atoms to form distorted LaO12 cuboctahedra that share corners with four equivalent La(1)O12 cuboctahedra, corners with two equivalent Mg(1)Cl2O3 trigonal bipyramids, faces with four equivalent La(1)O12 cuboctahedra, faces with four equivalent Ta(1)O6 octahedra, and faces with four equivalent Ta(2)O6 octahedra. There are two inequivalent Ta sites. In the first Ta site, Ta(1) is bonded to one O(5), one O(7), two equivalent O(1), and two equivalent O(2) atoms to form TaO6 octahedra that share  a cornercorner with one Ta(2)O6 octahedra, corners with four equivalent Ta(1)O6 octahedra, edges with two equivalent Mg(1)Cl2O3 trigonal bipyramids, and faces with four equivalent La(1)O12 cuboctahedra. The corner-sharing octahedral tilt angles range from 0-17°. In the second Ta site, Ta(2) is bonded to one O(6), one O(7), two equivalent O(3), and two equivalent O(4) atoms to form distorted TaO6 octahedra that share  a cornercorner with one Ta(1)O6 octahedra, corners with four equivalent Ta(2)O6 octahedra, and faces with four equivalent La(1)O12 cuboctahedra. The corner-sharing octahedral tilt angles range from 0-25°. Cu(1) is bonded in a distorted linear geometry to one O(5), one O(6), and four equivalent Cl(1) atoms. There are seven inequivalent O sites. In the first O site, O(1) is bonded in a 4-coordinate geometry to two equivalent La(1) and two equivalent Ta(1) atoms. In the second O site, O(2) is bonded in a distorted T-shaped geometry to one Mg(1), two equivalent La(1), and two equivalent Ta(1) atoms. In the third O site, O(3) is bonded in a 4-coordinate geometry to two equivalent La(1) and two equivalent Ta(2) atoms. In the fourth O site, O(4) is bonded to two equivalent La(1) and two equivalent Ta(2) atoms to form distorted corner-sharing OLa2Ta2 trigonal pyramids. In the fifth O site, O(5) is bonded in a square co-planar geometry to two equivalent Mg(1), one Ta(1), and one Cu(1) atom. In the sixth O site, O(6) is bonded in a linear geometry to one Ta(2) and one Cu(1) atom. In the seventh O site, O(7) is bonded in a distorted linear geometry to four equivalent La(1), one Ta(1), and one Ta(2) atom. Cl(1) is bonded in a 6-coordinate geometry to two equivalent Mg(1) and four equivalent Cu(1) atoms. is represented by the CIF card [CIF]
data_LaMgTa2CuClO7
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.059
_cell_length_b   4.015
_cell_length_c   11.802
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   89.988
_symmetry_Int_Tables_number   1
_cell_volume   192.328
_cell_formula_units_Z   1
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
  La  La0  1  1.000  0.000  0.010  1.0
  Mg  Mg1  1  1.000  0.500  0.641  1.0
  Ta  Ta2  1  0.500  0.500  0.829  1.0
  Ta  Ta3  1  0.500  0.500  0.184  1.0
  Cu  Cu4  1  0.500  0.500  0.492  1.0
  Cl  Cl5  1  0.000  1.000  0.524  1.0
  O  O6  1  0.500  0.000  0.854  1.0
  O  O7  1  0.000  0.500  0.821  1.0
  O  O8  1  0.500  0.000  0.148  1.0
  O  O9  1  0.000  0.500  0.147  1.0
  O  O10  1  0.500  0.500  0.659  1.0
  O  O11  1  0.500  0.500  0.337  1.0
  O  O12  1  0.500  0.500  0.997  1.0
[/CIF]
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The structure described by MgLaTa2CuO7Cl crystallizes in the orthorhombic Pmm2 space group. Mg(1) is bonded to one O(2), two equivalent O(5), and two equivalent Cl(1) atoms to form distorted MgCl2O3 trigonal bipyramids that share corners with two equivalent La(1)O12 cuboctahedra, corners with four equivalent Mg(1)Cl2O3 trigonal bipyramids, and edges with two equivalent Ta(1)O6 octahedra. La(1) is bonded to two equivalent O(1), two equivalent O(2), two equivalent O(3), two equivalent O(4), and four equivalent O(7) atoms to form distorted LaO12 cuboctahedra that share corners with four equivalent La(1)O12 cuboctahedra, corners with two equivalent Mg(1)Cl2O3 trigonal bipyramids, faces with four equivalent La(1)O12 cuboctahedra, faces with four equivalent Ta(1)O6 octahedra, and faces with four equivalent Ta(2)O6 octahedra. There are two inequivalent Ta sites. In the first Ta site, Ta(1) is bonded to one O(5), one O(7), two equivalent O(1), and two equivalent O(2) atoms to form TaO6 octahedra that share  a cornercorner with one Ta(2)O6 octahedra, corners with four equivalent Ta(1)O6 octahedra, edges with two equivalent Mg(1)Cl2O3 trigonal bipyramids, and faces with four equivalent La(1)O12 cuboctahedra. The corner-sharing octahedral tilt angles range from 0-17°. In the second Ta site, Ta(2) is bonded to one O(6), one O(7), two equivalent O(3), and two equivalent O(4) atoms to form distorted TaO6 octahedra that share  a cornercorner with one Ta(1)O6 octahedra, corners with four equivalent Ta(2)O6 octahedra, and faces with four equivalent La(1)O12 cuboctahedra. The corner-sharing octahedral tilt angles range from 0-25°. Cu(1) is bonded in a distorted linear geometry to one O(5), one O(6), and four equivalent Cl(1) atoms. There are seven inequivalent O sites. In the first O site, O(1) is bonded in a 4-coordinate geometry to two equivalent La(1) and two equivalent Ta(1) atoms. In the second O site, O(2) is bonded in a distorted T-shaped geometry to one Mg(1), two equivalent La(1), and two equivalent Ta(1) atoms. In the third O site, O(3) is bonded in a 4-coordinate geometry to two equivalent La(1) and two equivalent Ta(2) atoms. In the fourth O site, O(4) is bonded to two equivalent La(1) and two equivalent Ta(2) atoms to form distorted corner-sharing OLa2Ta2 trigonal pyramids. In the fifth O site, O(5) is bonded in a square co-planar geometry to two equivalent Mg(1), one Ta(1), and one Cu(1) atom. In the sixth O site, O(6) is bonded in a linear geometry to one Ta(2) and one Cu(1) atom. In the seventh O site, O(7) is bonded in a distorted linear geometry to four equivalent La(1), one Ta(1), and one Ta(2) atom. Cl(1) is bonded in a 6-coordinate geometry to two equivalent Mg(1) and four equivalent Cu(1) atoms. is represented by the CIF card [CIF]
data_LaMgTa2CuClO7
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.059
_cell_length_b   4.015
_cell_length_c   11.802
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   89.988
_symmetry_Int_Tables_number   1
_cell_volume   192.328
_cell_formula_units_Z   1
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
  La  La0  1  1.000  0.000  0.010  1.0
  Mg  Mg1  1  1.000  0.500  0.641  1.0
  Ta  Ta2  1  0.500  0.500  0.829  1.0
  Ta  Ta3  1  0.500  0.500  0.184  1.0
  Cu  Cu4  1  0.500  0.500  0.492  1.0
  Cl  Cl5  1  0.000  1.000  0.524  1.0
  O  O6  1  0.500  0.000  0.854  1.0
  O  O7  1  0.000  0.500  0.821  1.0
  O  O8  1  0.500  0.000  0.148  1.0
  O  O9  1  0.000  0.500  0.147  1.0
  O  O10  1  0.500  0.500  0.659  1.0
  O  O11  1  0.500  0.500  0.337  1.0
  O  O12  1  0.500  0.500  0.997  1.0
[/CIF]
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