The material structure described by RbEu2Cl5 crystallizes in the monoclinic P2_1/c space group. Rb(1) is bonded in a 9-coordinate geometry to two equivalent Cl(2), two equivalent Cl(3), two equivalent Cl(4), and three equivalent Cl(1) atoms. There are two inequivalent Eu sites. In the first Eu site, Eu(1) is bonded in a 8-coordinate geometry to two equivalent Cl(2), two equivalent Cl(3), two equivalent Cl(4), and two equivalent Cl(5) atoms. In the second Eu site, Eu(2) is bonded to one Cl(2), one Cl(3), one Cl(4), two equivalent Cl(1), and two equivalent Cl(5) atoms to form distorted edge-sharing EuCl7 pentagonal bipyramids. There are five inequivalent Cl sites. In the first Cl site, Cl(1) is bonded in a 5-coordinate geometry to three equivalent Rb(1) and two equivalent Eu(2) atoms. In the second Cl site, Cl(2) is bonded in a 5-coordinate geometry to two equivalent Rb(1), one Eu(2), and two equivalent Eu(1) atoms. In the third Cl site, Cl(3) is bonded to two equivalent Rb(1), one Eu(2), and two equivalent Eu(1) atoms to form ClRb2Eu3 trigonal bipyramids that share corners with four equivalent Cl(4)Rb2Eu3 square pyramids, corners with two equivalent Cl(5)Eu4 tetrahedra, corners with four equivalent Cl(3)Rb2Eu3 trigonal bipyramids,  an edgeedge with one Cl(4)Rb2Eu3 square pyramid, edges with two equivalent Cl(5)Eu4 tetrahedra, and  a faceface with one Cl(4)Rb2Eu3 square pyramid. In the fourth Cl site, Cl(4) is bonded to two equivalent Rb(1), one Eu(2), and two equivalent Eu(1) atoms to form distorted ClRb2Eu3 square pyramids that share corners with four equivalent Cl(5)Eu4 tetrahedra, corners with four equivalent Cl(3)Rb2Eu3 trigonal bipyramids, edges with two equivalent Cl(4)Rb2Eu3 square pyramids,  an edgeedge with one Cl(5)Eu4 tetrahedra,  an edgeedge with one Cl(3)Rb2Eu3 trigonal bipyramid, and  a faceface with one Cl(3)Rb2Eu3 trigonal bipyramid. In the fifth Cl site, Cl(5) is bonded to two equivalent Eu(1) and two equivalent Eu(2) atoms to form distorted ClEu4 tetrahedra that share corners with four equivalent Cl(4)Rb2Eu3 square pyramids, corners with two equivalent Cl(5)Eu4 tetrahedra, corners with two equivalent Cl(3)Rb2Eu3 trigonal bipyramids,  an edgeedge with one Cl(4)Rb2Eu3 square pyramid,  an edgeedge with one Cl(5)Eu4 tetrahedra, and edges with two equivalent Cl(3)Rb2Eu3 trigonal bipyramids. is represented by the CIF file [CIF]
data_RbEu2Cl5
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.880
_cell_length_b   8.975
_cell_length_c   12.634
_cell_angle_alpha   89.773
_cell_angle_beta   89.998
_cell_angle_gamma   90.001
_symmetry_Int_Tables_number   1
_cell_volume   893.577
_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
  Rb  Rb0  1  0.445  0.489  0.834  1.0
  Rb  Rb1  1  0.555  0.511  0.166  1.0
  Rb  Rb2  1  0.945  0.511  0.666  1.0
  Rb  Rb3  1  0.055  0.489  0.334  1.0
  Eu  Eu4  1  0.476  0.999  0.822  1.0
  Eu  Eu5  1  0.524  0.001  0.178  1.0
  Eu  Eu6  1  0.976  0.001  0.678  1.0
  Eu  Eu7  1  0.024  0.999  0.322  1.0
  Eu  Eu8  1  0.432  0.753  0.506  1.0
  Eu  Eu9  1  0.568  0.247  0.494  1.0
  Eu  Eu10  1  0.932  0.247  0.994  1.0
  Eu  Eu11  1  0.068  0.753  0.006  1.0
  Cl  Cl12  1  0.327  0.465  0.580  1.0
  Cl  Cl13  1  0.673  0.535  0.420  1.0
  Cl  Cl14  1  0.828  0.535  0.920  1.0
  Cl  Cl15  1  0.173  0.465  0.080  1.0
  Cl  Cl16  1  0.666  0.790  0.684  1.0
  Cl  Cl17  1  0.334  0.210  0.316  1.0
  Cl  Cl18  1  0.166  0.210  0.816  1.0
  Cl  Cl19  1  0.834  0.789  0.184  1.0
  Cl  Cl20  1  0.191  0.775  0.784  1.0
  Cl  Cl21  1  0.809  0.225  0.216  1.0
  Cl  Cl22  1  0.691  0.225  0.716  1.0
  Cl  Cl23  1  0.309  0.775  0.284  1.0
  Cl  Cl24  1  0.050  0.790  0.502  1.0
  Cl  Cl25  1  0.950  0.210  0.498  1.0
  Cl  Cl26  1  0.550  0.210  0.998  1.0
  Cl  Cl27  1  0.450  0.790  0.002  1.0
  Cl  Cl28  1  0.840  0.961  0.900  1.0
  Cl  Cl29  1  0.160  0.039  0.101  1.0
  Cl  Cl30  1  0.340  0.039  0.600  1.0
  Cl  Cl31  1  0.660  0.961  0.400  1.0
[/CIF]
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The material structure described by RbEu2Cl5 crystallizes in the monoclinic P2_1/c space group. Rb(1) is bonded in a 9-coordinate geometry to two equivalent Cl(2), two equivalent Cl(3), two equivalent Cl(4), and three equivalent Cl(1) atoms. There are two inequivalent Eu sites. In the first Eu site, Eu(1) is bonded in a 8-coordinate geometry to two equivalent Cl(2), two equivalent Cl(3), two equivalent Cl(4), and two equivalent Cl(5) atoms. In the second Eu site, Eu(2) is bonded to one Cl(2), one Cl(3), one Cl(4), two equivalent Cl(1), and two equivalent Cl(5) atoms to form distorted edge-sharing EuCl7 pentagonal bipyramids. There are five inequivalent Cl sites. In the first Cl site, Cl(1) is bonded in a 5-coordinate geometry to three equivalent Rb(1) and two equivalent Eu(2) atoms. In the second Cl site, Cl(2) is bonded in a 5-coordinate geometry to two equivalent Rb(1), one Eu(2), and two equivalent Eu(1) atoms. In the third Cl site, Cl(3) is bonded to two equivalent Rb(1), one Eu(2), and two equivalent Eu(1) atoms to form ClRb2Eu3 trigonal bipyramids that share corners with four equivalent Cl(4)Rb2Eu3 square pyramids, corners with two equivalent Cl(5)Eu4 tetrahedra, corners with four equivalent Cl(3)Rb2Eu3 trigonal bipyramids,  an edgeedge with one Cl(4)Rb2Eu3 square pyramid, edges with two equivalent Cl(5)Eu4 tetrahedra, and  a faceface with one Cl(4)Rb2Eu3 square pyramid. In the fourth Cl site, Cl(4) is bonded to two equivalent Rb(1), one Eu(2), and two equivalent Eu(1) atoms to form distorted ClRb2Eu3 square pyramids that share corners with four equivalent Cl(5)Eu4 tetrahedra, corners with four equivalent Cl(3)Rb2Eu3 trigonal bipyramids, edges with two equivalent Cl(4)Rb2Eu3 square pyramids,  an edgeedge with one Cl(5)Eu4 tetrahedra,  an edgeedge with one Cl(3)Rb2Eu3 trigonal bipyramid, and  a faceface with one Cl(3)Rb2Eu3 trigonal bipyramid. In the fifth Cl site, Cl(5) is bonded to two equivalent Eu(1) and two equivalent Eu(2) atoms to form distorted ClEu4 tetrahedra that share corners with four equivalent Cl(4)Rb2Eu3 square pyramids, corners with two equivalent Cl(5)Eu4 tetrahedra, corners with two equivalent Cl(3)Rb2Eu3 trigonal bipyramids,  an edgeedge with one Cl(4)Rb2Eu3 square pyramid,  an edgeedge with one Cl(5)Eu4 tetrahedra, and edges with two equivalent Cl(3)Rb2Eu3 trigonal bipyramids. is represented by the CIF file [CIF]
data_RbEu2Cl5
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.880
_cell_length_b   8.975
_cell_length_c   12.634
_cell_angle_alpha   89.773
_cell_angle_beta   89.998
_cell_angle_gamma   90.001
_symmetry_Int_Tables_number   1
_cell_volume   893.577
_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
  Rb  Rb0  1  0.445  0.489  0.834  1.0
  Rb  Rb1  1  0.555  0.511  0.166  1.0
  Rb  Rb2  1  0.945  0.511  0.666  1.0
  Rb  Rb3  1  0.055  0.489  0.334  1.0
  Eu  Eu4  1  0.476  0.999  0.822  1.0
  Eu  Eu5  1  0.524  0.001  0.178  1.0
  Eu  Eu6  1  0.976  0.001  0.678  1.0
  Eu  Eu7  1  0.024  0.999  0.322  1.0
  Eu  Eu8  1  0.432  0.753  0.506  1.0
  Eu  Eu9  1  0.568  0.247  0.494  1.0
  Eu  Eu10  1  0.932  0.247  0.994  1.0
  Eu  Eu11  1  0.068  0.753  0.006  1.0
  Cl  Cl12  1  0.327  0.465  0.580  1.0
  Cl  Cl13  1  0.673  0.535  0.420  1.0
  Cl  Cl14  1  0.828  0.535  0.920  1.0
  Cl  Cl15  1  0.173  0.465  0.080  1.0
  Cl  Cl16  1  0.666  0.790  0.684  1.0
  Cl  Cl17  1  0.334  0.210  0.316  1.0
  Cl  Cl18  1  0.166  0.210  0.816  1.0
  Cl  Cl19  1  0.834  0.789  0.184  1.0
  Cl  Cl20  1  0.191  0.775  0.784  1.0
  Cl  Cl21  1  0.809  0.225  0.216  1.0
  Cl  Cl22  1  0.691  0.225  0.716  1.0
  Cl  Cl23  1  0.309  0.775  0.284  1.0
  Cl  Cl24  1  0.050  0.790  0.502  1.0
  Cl  Cl25  1  0.950  0.210  0.498  1.0
  Cl  Cl26  1  0.550  0.210  0.998  1.0
  Cl  Cl27  1  0.450  0.790  0.002  1.0
  Cl  Cl28  1  0.840  0.961  0.900  1.0
  Cl  Cl29  1  0.160  0.039  0.101  1.0
  Cl  Cl30  1  0.340  0.039  0.600  1.0
  Cl  Cl31  1  0.660  0.961  0.400  1.0
[/CIF]
.