The compound described by RbMnPO4 crystallizes in the monoclinic P2_1 space group. There are two inequivalent Rb sites. In the first Rb site, Rb(1) is bonded in a 5-coordinate geometry to one O(1), one O(2), one O(6), one O(7), and one O(8) atom. In the second Rb site, Rb(2) is bonded in a 8-coordinate geometry to one O(1), one O(7), two equivalent O(3), two equivalent O(4), and two equivalent O(5) atoms. There are two inequivalent Mn sites. In the first Mn site, Mn(1) is bonded to one O(1), one O(5), one O(6), and one O(7) atom to form MnO4 tetrahedra that share  a cornercorner with one P(1)O4 tetrahedra and corners with three equivalent P(2)O4 tetrahedra. In the second Mn site, Mn(2) is bonded in a 5-coordinate geometry to one O(2), one O(3), one O(4), and two equivalent O(8) atoms. There are two inequivalent P sites. In the first P site, P(1) is bonded to one O(3), one O(4), one O(6), and one O(8) atom to form PO4 tetrahedra that share  a cornercorner with one Mn(1)O4 tetrahedra. In the second P site, P(2) is bonded to one O(1), one O(2), one O(5), and one O(7) atom to form PO4 tetrahedra that share corners with three equivalent Mn(1)O4 tetrahedra. There are eight inequivalent O sites. In the first O site, O(1) is bonded in a 2-coordinate geometry to one Rb(1), one Rb(2), one Mn(1), and one P(2) atom. In the second O site, O(2) is bonded in a 2-coordinate geometry to one Rb(1), one Mn(2), and one P(2) atom. In the third O site, O(3) is bonded in a 2-coordinate geometry to two equivalent Rb(2), one Mn(2), and one P(1) atom. In the fourth O site, O(4) is bonded in a 4-coordinate geometry to two equivalent Rb(2), one Mn(2), and one P(1) atom. In the fifth O site, O(5) is bonded in a 2-coordinate geometry to two equivalent Rb(2), one Mn(1), and one P(2) atom. In the sixth O site, O(6) is bonded in a 2-coordinate geometry to one Rb(1), one Mn(1), and one P(1) atom. In the seventh O site, O(7) is bonded in a 2-coordinate geometry to one Rb(1), one Rb(2), one Mn(1), and one P(2) atom. In the eighth O site, O(8) is bonded in a 2-coordinate geometry to one Rb(1), two equivalent Mn(2), and one P(1) atom. is represented by the CIF card [CIF]
data_RbMnPO4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.524
_cell_length_b   9.098
_cell_length_c   9.360
_cell_angle_alpha   90.350
_cell_angle_beta   89.998
_cell_angle_gamma   89.999
_symmetry_Int_Tables_number   1
_cell_volume   470.417
_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  0.879  0.994  0.800  1.0
  Rb  Rb1  1  0.379  0.006  0.200  1.0
  Rb  Rb2  1  0.410  0.511  0.310  1.0
  Rb  Rb3  1  0.910  0.489  0.690  1.0
  Mn  Mn4  1  0.411  0.673  0.907  1.0
  Mn  Mn5  1  0.358  0.160  0.568  1.0
  Mn  Mn6  1  0.911  0.327  0.093  1.0
  Mn  Mn7  1  0.858  0.840  0.432  1.0
  P  P8  1  0.401  0.793  0.573  1.0
  P  P9  1  0.901  0.207  0.427  1.0
  P  P10  1  0.409  0.298  0.900  1.0
  P  P11  1  0.909  0.702  0.100  1.0
  O  O12  1  0.183  0.735  0.072  1.0
  O  O13  1  0.683  0.265  0.928  1.0
  O  O14  1  0.811  0.811  0.214  1.0
  O  O15  1  0.311  0.189  0.786  1.0
  O  O16  1  0.680  0.264  0.512  1.0
  O  O17  1  0.180  0.736  0.488  1.0
  O  O18  1  0.623  0.691  0.545  1.0
  O  O19  1  0.123  0.309  0.455  1.0
  O  O20  1  0.378  0.458  0.846  1.0
  O  O21  1  0.878  0.542  0.154  1.0
  O  O22  1  0.837  0.195  0.266  1.0
  O  O23  1  0.337  0.805  0.734  1.0
  O  O24  1  0.766  0.724  0.957  1.0
  O  O25  1  0.266  0.276  0.043  1.0
  O  O26  1  0.990  0.053  0.483  1.0
  O  O27  1  0.490  0.947  0.517  1.0
[/CIF]
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The compound described by RbMnPO4 crystallizes in the monoclinic P2_1 space group. There are two inequivalent Rb sites. In the first Rb site, Rb(1) is bonded in a 5-coordinate geometry to one O(1), one O(2), one O(6), one O(7), and one O(8) atom. In the second Rb site, Rb(2) is bonded in a 8-coordinate geometry to one O(1), one O(7), two equivalent O(3), two equivalent O(4), and two equivalent O(5) atoms. There are two inequivalent Mn sites. In the first Mn site, Mn(1) is bonded to one O(1), one O(5), one O(6), and one O(7) atom to form MnO4 tetrahedra that share  a cornercorner with one P(1)O4 tetrahedra and corners with three equivalent P(2)O4 tetrahedra. In the second Mn site, Mn(2) is bonded in a 5-coordinate geometry to one O(2), one O(3), one O(4), and two equivalent O(8) atoms. There are two inequivalent P sites. In the first P site, P(1) is bonded to one O(3), one O(4), one O(6), and one O(8) atom to form PO4 tetrahedra that share  a cornercorner with one Mn(1)O4 tetrahedra. In the second P site, P(2) is bonded to one O(1), one O(2), one O(5), and one O(7) atom to form PO4 tetrahedra that share corners with three equivalent Mn(1)O4 tetrahedra. There are eight inequivalent O sites. In the first O site, O(1) is bonded in a 2-coordinate geometry to one Rb(1), one Rb(2), one Mn(1), and one P(2) atom. In the second O site, O(2) is bonded in a 2-coordinate geometry to one Rb(1), one Mn(2), and one P(2) atom. In the third O site, O(3) is bonded in a 2-coordinate geometry to two equivalent Rb(2), one Mn(2), and one P(1) atom. In the fourth O site, O(4) is bonded in a 4-coordinate geometry to two equivalent Rb(2), one Mn(2), and one P(1) atom. In the fifth O site, O(5) is bonded in a 2-coordinate geometry to two equivalent Rb(2), one Mn(1), and one P(2) atom. In the sixth O site, O(6) is bonded in a 2-coordinate geometry to one Rb(1), one Mn(1), and one P(1) atom. In the seventh O site, O(7) is bonded in a 2-coordinate geometry to one Rb(1), one Rb(2), one Mn(1), and one P(2) atom. In the eighth O site, O(8) is bonded in a 2-coordinate geometry to one Rb(1), two equivalent Mn(2), and one P(1) atom. is represented by the CIF card [CIF]
data_RbMnPO4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.524
_cell_length_b   9.098
_cell_length_c   9.360
_cell_angle_alpha   90.350
_cell_angle_beta   89.998
_cell_angle_gamma   89.999
_symmetry_Int_Tables_number   1
_cell_volume   470.417
_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  0.879  0.994  0.800  1.0
  Rb  Rb1  1  0.379  0.006  0.200  1.0
  Rb  Rb2  1  0.410  0.511  0.310  1.0
  Rb  Rb3  1  0.910  0.489  0.690  1.0
  Mn  Mn4  1  0.411  0.673  0.907  1.0
  Mn  Mn5  1  0.358  0.160  0.568  1.0
  Mn  Mn6  1  0.911  0.327  0.093  1.0
  Mn  Mn7  1  0.858  0.840  0.432  1.0
  P  P8  1  0.401  0.793  0.573  1.0
  P  P9  1  0.901  0.207  0.427  1.0
  P  P10  1  0.409  0.298  0.900  1.0
  P  P11  1  0.909  0.702  0.100  1.0
  O  O12  1  0.183  0.735  0.072  1.0
  O  O13  1  0.683  0.265  0.928  1.0
  O  O14  1  0.811  0.811  0.214  1.0
  O  O15  1  0.311  0.189  0.786  1.0
  O  O16  1  0.680  0.264  0.512  1.0
  O  O17  1  0.180  0.736  0.488  1.0
  O  O18  1  0.623  0.691  0.545  1.0
  O  O19  1  0.123  0.309  0.455  1.0
  O  O20  1  0.378  0.458  0.846  1.0
  O  O21  1  0.878  0.542  0.154  1.0
  O  O22  1  0.837  0.195  0.266  1.0
  O  O23  1  0.337  0.805  0.734  1.0
  O  O24  1  0.766  0.724  0.957  1.0
  O  O25  1  0.266  0.276  0.043  1.0
  O  O26  1  0.990  0.053  0.483  1.0
  O  O27  1  0.490  0.947  0.517  1.0
[/CIF]
.