The structure described by K2EuGeSe5 crystallizes in the monoclinic P2_1/c space group. There are two inequivalent K sites. In the first K site, K(1) is bonded in a 6-coordinate geometry to one Se(2), one Se(4), and four equivalent Se(5) atoms. In the second K site, K(2) is bonded in a 7-coordinate geometry to one Se(1), one Se(2), one Se(3), two equivalent Se(4), and two equivalent Se(5) atoms. Eu(1) is bonded in a 9-coordinate geometry to one Se(4), two equivalent Se(2), three equivalent Se(1), and three equivalent Se(3) atoms. Ge(1) is bonded in a tetrahedral geometry to one Se(2), one Se(3), one Se(4), and one Se(5) atom. There are five inequivalent Se sites. In the first Se site, Se(1) is bonded in a 6-coordinate geometry to one K(2), three equivalent Eu(1), one Se(3), and one Se(4) atom. In the second Se site, Se(2) is bonded to one K(1), one K(2), two equivalent Eu(1), and one Ge(1) atom to form distorted corner-sharing SeK2Eu2Ge trigonal bipyramids. In the third Se site, Se(3) is bonded in a 6-coordinate geometry to one K(2), three equivalent Eu(1), one Ge(1), and one Se(1) atom. In the fourth Se site, Se(4) is bonded in a 6-coordinate geometry to one K(1), two equivalent K(2), one Eu(1), one Ge(1), and one Se(1) atom. In the fifth Se site, Se(5) is bonded in a 7-coordinate geometry to two equivalent K(2), four equivalent K(1), and one Ge(1) atom. is represented by the CIF card [CIF]
data_K2EuGeSe5
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   10.066
_cell_length_b   9.012
_cell_length_c   11.910
_cell_angle_alpha   88.768
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   1080.195
_cell_formula_units_Z   4
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
  K  K0  1  0.800  0.461  0.057  1.0
  K  K1  1  0.056  0.126  0.200  1.0
  K  K2  1  0.700  0.961  0.057  1.0
  K  K3  1  0.556  0.374  0.800  1.0
  K  K4  1  0.300  0.039  0.943  1.0
  K  K5  1  0.200  0.539  0.943  1.0
  K  K6  1  0.944  0.874  0.800  1.0
  K  K7  1  0.444  0.626  0.200  1.0
  Eu  Eu8  1  0.272  0.106  0.517  1.0
  Eu  Eu9  1  0.728  0.894  0.483  1.0
  Eu  Eu10  1  0.772  0.394  0.483  1.0
  Eu  Eu11  1  0.228  0.606  0.517  1.0
  Ge  Ge12  1  0.521  0.208  0.253  1.0
  Ge  Ge13  1  0.479  0.792  0.747  1.0
  Ge  Ge14  1  0.979  0.708  0.253  1.0
  Ge  Ge15  1  0.021  0.292  0.747  1.0
  Se  Se16  1  0.434  0.837  0.414  1.0
  Se  Se17  1  0.754  0.641  0.291  1.0
  Se  Se18  1  0.535  0.637  0.591  1.0
  Se  Se19  1  0.746  0.141  0.291  1.0
  Se  Se20  1  0.867  0.501  0.752  1.0
  Se  Se21  1  0.465  0.363  0.409  1.0
  Se  Se22  1  0.254  0.859  0.709  1.0
  Se  Se23  1  0.987  0.194  0.930  1.0
  Se  Se24  1  0.566  0.163  0.586  1.0
  Se  Se25  1  0.513  0.694  0.930  1.0
  Se  Se26  1  0.965  0.137  0.591  1.0
  Se  Se27  1  0.035  0.863  0.409  1.0
  Se  Se28  1  0.367  0.999  0.248  1.0
  Se  Se29  1  0.487  0.306  0.070  1.0
  Se  Se30  1  0.133  0.499  0.248  1.0
  Se  Se31  1  0.246  0.359  0.709  1.0
  Se  Se32  1  0.013  0.806  0.070  1.0
  Se  Se33  1  0.066  0.337  0.414  1.0
  Se  Se34  1  0.934  0.663  0.586  1.0
  Se  Se35  1  0.633  0.001  0.752  1.0
[/CIF]
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The structure described by K2EuGeSe5 crystallizes in the monoclinic P2_1/c space group. There are two inequivalent K sites. In the first K site, K(1) is bonded in a 6-coordinate geometry to one Se(2), one Se(4), and four equivalent Se(5) atoms. In the second K site, K(2) is bonded in a 7-coordinate geometry to one Se(1), one Se(2), one Se(3), two equivalent Se(4), and two equivalent Se(5) atoms. Eu(1) is bonded in a 9-coordinate geometry to one Se(4), two equivalent Se(2), three equivalent Se(1), and three equivalent Se(3) atoms. Ge(1) is bonded in a tetrahedral geometry to one Se(2), one Se(3), one Se(4), and one Se(5) atom. There are five inequivalent Se sites. In the first Se site, Se(1) is bonded in a 6-coordinate geometry to one K(2), three equivalent Eu(1), one Se(3), and one Se(4) atom. In the second Se site, Se(2) is bonded to one K(1), one K(2), two equivalent Eu(1), and one Ge(1) atom to form distorted corner-sharing SeK2Eu2Ge trigonal bipyramids. In the third Se site, Se(3) is bonded in a 6-coordinate geometry to one K(2), three equivalent Eu(1), one Ge(1), and one Se(1) atom. In the fourth Se site, Se(4) is bonded in a 6-coordinate geometry to one K(1), two equivalent K(2), one Eu(1), one Ge(1), and one Se(1) atom. In the fifth Se site, Se(5) is bonded in a 7-coordinate geometry to two equivalent K(2), four equivalent K(1), and one Ge(1) atom. is represented by the CIF card [CIF]
data_K2EuGeSe5
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   10.066
_cell_length_b   9.012
_cell_length_c   11.910
_cell_angle_alpha   88.768
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   1080.195
_cell_formula_units_Z   4
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
  K  K0  1  0.800  0.461  0.057  1.0
  K  K1  1  0.056  0.126  0.200  1.0
  K  K2  1  0.700  0.961  0.057  1.0
  K  K3  1  0.556  0.374  0.800  1.0
  K  K4  1  0.300  0.039  0.943  1.0
  K  K5  1  0.200  0.539  0.943  1.0
  K  K6  1  0.944  0.874  0.800  1.0
  K  K7  1  0.444  0.626  0.200  1.0
  Eu  Eu8  1  0.272  0.106  0.517  1.0
  Eu  Eu9  1  0.728  0.894  0.483  1.0
  Eu  Eu10  1  0.772  0.394  0.483  1.0
  Eu  Eu11  1  0.228  0.606  0.517  1.0
  Ge  Ge12  1  0.521  0.208  0.253  1.0
  Ge  Ge13  1  0.479  0.792  0.747  1.0
  Ge  Ge14  1  0.979  0.708  0.253  1.0
  Ge  Ge15  1  0.021  0.292  0.747  1.0
  Se  Se16  1  0.434  0.837  0.414  1.0
  Se  Se17  1  0.754  0.641  0.291  1.0
  Se  Se18  1  0.535  0.637  0.591  1.0
  Se  Se19  1  0.746  0.141  0.291  1.0
  Se  Se20  1  0.867  0.501  0.752  1.0
  Se  Se21  1  0.465  0.363  0.409  1.0
  Se  Se22  1  0.254  0.859  0.709  1.0
  Se  Se23  1  0.987  0.194  0.930  1.0
  Se  Se24  1  0.566  0.163  0.586  1.0
  Se  Se25  1  0.513  0.694  0.930  1.0
  Se  Se26  1  0.965  0.137  0.591  1.0
  Se  Se27  1  0.035  0.863  0.409  1.0
  Se  Se28  1  0.367  0.999  0.248  1.0
  Se  Se29  1  0.487  0.306  0.070  1.0
  Se  Se30  1  0.133  0.499  0.248  1.0
  Se  Se31  1  0.246  0.359  0.709  1.0
  Se  Se32  1  0.013  0.806  0.070  1.0
  Se  Se33  1  0.066  0.337  0.414  1.0
  Se  Se34  1  0.934  0.663  0.586  1.0
  Se  Se35  1  0.633  0.001  0.752  1.0
[/CIF]
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