The crystal structure described by RbMgPO4 crystallizes in the orthorhombic Pna2_1 space group. Rb(1) is bonded in a 10-coordinate geometry to two equivalent O(3), two equivalent O(4), three equivalent O(1), and three equivalent O(2) atoms. Mg(1) is bonded to one O(1), one O(2), one O(3), and one O(4) atom to form MgO4 tetrahedra that share corners with four equivalent P(1)O4 tetrahedra. P(1) is bonded to one O(1), one O(2), one O(3), and one O(4) atom to form PO4 tetrahedra that share corners with four equivalent Mg(1)O4 tetrahedra. There are four inequivalent O sites. In the first O site, O(1) is bonded in a 2-coordinate geometry to three equivalent Rb(1), one Mg(1), and one P(1) atom. In the second O site, O(2) is bonded in a linear geometry to three equivalent Rb(1), one Mg(1), and one P(1) atom. In the third O site, O(3) is bonded in a distorted bent 150 degrees geometry to two equivalent Rb(1), one Mg(1), and one P(1) atom. In the fourth O site, O(4) is bonded in a 2-coordinate geometry to two equivalent Rb(1), one Mg(1), and one P(1) atom. is represented by the CIF card [CIF]
data_RbMgPO4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.797
_cell_length_b   9.295
_cell_length_c   5.386
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   440.415
_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  0.496  0.215  0.229  1.0
  Rb  Rb1  1  0.996  0.285  0.229  1.0
  Rb  Rb2  1  0.004  0.715  0.729  1.0
  Rb  Rb3  1  0.504  0.785  0.729  1.0
  Mg  Mg4  1  0.318  0.584  0.247  1.0
  Mg  Mg5  1  0.818  0.916  0.247  1.0
  Mg  Mg6  1  0.182  0.084  0.747  1.0
  Mg  Mg7  1  0.682  0.416  0.747  1.0
  P  P8  1  0.707  0.580  0.247  1.0
  P  P9  1  0.207  0.920  0.247  1.0
  P  P10  1  0.793  0.080  0.747  1.0
  P  P11  1  0.293  0.420  0.747  1.0
  O  O12  1  0.769  0.551  0.984  1.0
  O  O13  1  0.269  0.949  0.984  1.0
  O  O14  1  0.534  0.583  0.238  1.0
  O  O15  1  0.034  0.917  0.238  1.0
  O  O16  1  0.765  0.724  0.345  1.0
  O  O17  1  0.265  0.776  0.345  1.0
  O  O18  1  0.261  0.040  0.422  1.0
  O  O19  1  0.761  0.460  0.422  1.0
  O  O20  1  0.731  0.051  0.484  1.0
  O  O21  1  0.231  0.449  0.484  1.0
  O  O22  1  0.966  0.083  0.738  1.0
  O  O23  1  0.466  0.417  0.738  1.0
  O  O24  1  0.735  0.224  0.845  1.0
  O  O25  1  0.235  0.276  0.845  1.0
  O  O26  1  0.239  0.540  0.922  1.0
  O  O27  1  0.739  0.960  0.922  1.0
[/CIF]
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The crystal structure described by RbMgPO4 crystallizes in the orthorhombic Pna2_1 space group. Rb(1) is bonded in a 10-coordinate geometry to two equivalent O(3), two equivalent O(4), three equivalent O(1), and three equivalent O(2) atoms. Mg(1) is bonded to one O(1), one O(2), one O(3), and one O(4) atom to form MgO4 tetrahedra that share corners with four equivalent P(1)O4 tetrahedra. P(1) is bonded to one O(1), one O(2), one O(3), and one O(4) atom to form PO4 tetrahedra that share corners with four equivalent Mg(1)O4 tetrahedra. There are four inequivalent O sites. In the first O site, O(1) is bonded in a 2-coordinate geometry to three equivalent Rb(1), one Mg(1), and one P(1) atom. In the second O site, O(2) is bonded in a linear geometry to three equivalent Rb(1), one Mg(1), and one P(1) atom. In the third O site, O(3) is bonded in a distorted bent 150 degrees geometry to two equivalent Rb(1), one Mg(1), and one P(1) atom. In the fourth O site, O(4) is bonded in a 2-coordinate geometry to two equivalent Rb(1), one Mg(1), and one P(1) atom. is represented by the CIF card [CIF]
data_RbMgPO4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.797
_cell_length_b   9.295
_cell_length_c   5.386
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   440.415
_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  0.496  0.215  0.229  1.0
  Rb  Rb1  1  0.996  0.285  0.229  1.0
  Rb  Rb2  1  0.004  0.715  0.729  1.0
  Rb  Rb3  1  0.504  0.785  0.729  1.0
  Mg  Mg4  1  0.318  0.584  0.247  1.0
  Mg  Mg5  1  0.818  0.916  0.247  1.0
  Mg  Mg6  1  0.182  0.084  0.747  1.0
  Mg  Mg7  1  0.682  0.416  0.747  1.0
  P  P8  1  0.707  0.580  0.247  1.0
  P  P9  1  0.207  0.920  0.247  1.0
  P  P10  1  0.793  0.080  0.747  1.0
  P  P11  1  0.293  0.420  0.747  1.0
  O  O12  1  0.769  0.551  0.984  1.0
  O  O13  1  0.269  0.949  0.984  1.0
  O  O14  1  0.534  0.583  0.238  1.0
  O  O15  1  0.034  0.917  0.238  1.0
  O  O16  1  0.765  0.724  0.345  1.0
  O  O17  1  0.265  0.776  0.345  1.0
  O  O18  1  0.261  0.040  0.422  1.0
  O  O19  1  0.761  0.460  0.422  1.0
  O  O20  1  0.731  0.051  0.484  1.0
  O  O21  1  0.231  0.449  0.484  1.0
  O  O22  1  0.966  0.083  0.738  1.0
  O  O23  1  0.466  0.417  0.738  1.0
  O  O24  1  0.735  0.224  0.845  1.0
  O  O25  1  0.235  0.276  0.845  1.0
  O  O26  1  0.239  0.540  0.922  1.0
  O  O27  1  0.739  0.960  0.922  1.0
[/CIF]
.