The structure described by RbZnPO4 crystallizes in the monoclinic P2_1 space group. There are two inequivalent Rb sites. In the first Rb site, Rb(1) is bonded to one O(5), one O(6), two equivalent O(2), two equivalent O(3), and two equivalent O(7) atoms to form distorted RbO8 hexagonal bipyramids that share corners with two equivalent Rb(1)O8 hexagonal bipyramids, corners with two equivalent Zn(1)O4 tetrahedra, corners with two equivalent Zn(2)O4 tetrahedra, corners with two equivalent P(1)O4 tetrahedra, corners with two equivalent P(2)O4 tetrahedra, edges with two equivalent Rb(1)O8 hexagonal bipyramids,  an edgeedge with one Zn(1)O4 tetrahedra,  an edgeedge with one Zn(2)O4 tetrahedra,  an edgeedge with one P(1)O4 tetrahedra, and  an edgeedge with one P(2)O4 tetrahedra. In the second Rb site, Rb(2) is bonded in a 5-coordinate geometry to one O(1), one O(4), one O(5), one O(6), and one O(8) atom. There are two inequivalent Zn sites. In the first Zn site, Zn(1) is bonded to one O(1), one O(5), one O(6), and one O(7) atom to form ZnO4 tetrahedra that share corners with two equivalent Rb(1)O8 hexagonal bipyramids,  a cornercorner with one P(2)O4 tetrahedra, corners with three equivalent P(1)O4 tetrahedra, and  an edgeedge with one Rb(1)O8 hexagonal bipyramid. In the second Zn site, Zn(2) is bonded to one O(2), one O(3), one O(4), and one O(8) atom to form ZnO4 tetrahedra that share corners with two equivalent Rb(1)O8 hexagonal bipyramids,  a cornercorner with one P(1)O4 tetrahedra, corners with three equivalent P(2)O4 tetrahedra, and  an edgeedge with one Rb(1)O8 hexagonal bipyramid. There are two inequivalent P sites. In the first P site, P(1) is bonded to one O(5), one O(6), one O(7), and one O(8) atom to form PO4 tetrahedra that share corners with two equivalent Rb(1)O8 hexagonal bipyramids,  a cornercorner with one Zn(2)O4 tetrahedra, corners with three equivalent Zn(1)O4 tetrahedra, and  an edgeedge with one Rb(1)O8 hexagonal bipyramid. In the second P site, P(2) 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 two equivalent Rb(1)O8 hexagonal bipyramids,  a cornercorner with one Zn(1)O4 tetrahedra, corners with three equivalent Zn(2)O4 tetrahedra, and  an edgeedge with one Rb(1)O8 hexagonal bipyramid. There are eight inequivalent O sites. In the first O site, O(1) is bonded in a 2-coordinate geometry to one Rb(2), one Zn(1), and one P(2) atom. In the second O site, O(2) is bonded in a 4-coordinate geometry to two equivalent Rb(1), one Zn(2), and one P(2) atom. In the third O site, O(3) is bonded in a 2-coordinate geometry to two equivalent Rb(1), one Zn(2), and one P(2) atom. In the fourth O site, O(4) is bonded in a 3-coordinate geometry to one Rb(2), one Zn(2), and one P(2) atom. In the fifth O site, O(5) is bonded in a 2-coordinate geometry to one Rb(1), one Rb(2), one Zn(1), and one P(1) atom. In the sixth O site, O(6) is bonded in a 2-coordinate geometry to one Rb(1), one Rb(2), one Zn(1), and one P(1) atom. In the seventh O site, O(7) is bonded in a 2-coordinate geometry to two equivalent Rb(1), one Zn(1), and one P(1) atom. In the eighth O site, O(8) is bonded in a 2-coordinate geometry to one Rb(2), one Zn(2), and one P(1) atom. is represented by the CIF card [CIF]
data_RbZnPO4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.499
_cell_length_b   9.003
_cell_length_c   9.092
_cell_angle_alpha   89.815
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   450.065
_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  0.782  0.502  0.687  1.0
  Rb  Rb1  1  0.282  0.498  0.313  1.0
  Rb  Rb2  1  0.258  0.991  0.198  1.0
  Rb  Rb3  1  0.758  0.009  0.802  1.0
  Zn  Zn4  1  0.791  0.671  0.092  1.0
  Zn  Zn5  1  0.291  0.329  0.908  1.0
  Zn  Zn6  1  0.753  0.175  0.423  1.0
  Zn  Zn7  1  0.253  0.825  0.577  1.0
  P  P8  1  0.789  0.308  0.098  1.0
  P  P9  1  0.289  0.692  0.902  1.0
  P  P10  1  0.257  0.194  0.578  1.0
  P  P11  1  0.757  0.806  0.422  1.0
  O  O12  1  0.211  0.192  0.746  1.0
  O  O13  1  0.711  0.808  0.254  1.0
  O  O14  1  0.046  0.278  0.497  1.0
  O  O15  1  0.546  0.722  0.503  1.0
  O  O16  1  0.498  0.278  0.541  1.0
  O  O17  1  0.998  0.722  0.459  1.0
  O  O18  1  0.273  0.034  0.519  1.0
  O  O19  1  0.773  0.966  0.481  1.0
  O  O20  1  0.640  0.291  0.952  1.0
  O  O21  1  0.140  0.709  0.048  1.0
  O  O22  1  0.063  0.274  0.067  1.0
  O  O23  1  0.563  0.726  0.933  1.0
  O  O24  1  0.258  0.534  0.836  1.0
  O  O25  1  0.758  0.466  0.164  1.0
  O  O26  1  0.193  0.808  0.789  1.0
  O  O27  1  0.693  0.192  0.211  1.0
[/CIF]
.
The structure described by RbZnPO4 crystallizes in the monoclinic P2_1 space group. There are two inequivalent Rb sites. In the first Rb site, Rb(1) is bonded to one O(5), one O(6), two equivalent O(2), two equivalent O(3), and two equivalent O(7) atoms to form distorted RbO8 hexagonal bipyramids that share corners with two equivalent Rb(1)O8 hexagonal bipyramids, corners with two equivalent Zn(1)O4 tetrahedra, corners with two equivalent Zn(2)O4 tetrahedra, corners with two equivalent P(1)O4 tetrahedra, corners with two equivalent P(2)O4 tetrahedra, edges with two equivalent Rb(1)O8 hexagonal bipyramids,  an edgeedge with one Zn(1)O4 tetrahedra,  an edgeedge with one Zn(2)O4 tetrahedra,  an edgeedge with one P(1)O4 tetrahedra, and  an edgeedge with one P(2)O4 tetrahedra. In the second Rb site, Rb(2) is bonded in a 5-coordinate geometry to one O(1), one O(4), one O(5), one O(6), and one O(8) atom. There are two inequivalent Zn sites. In the first Zn site, Zn(1) is bonded to one O(1), one O(5), one O(6), and one O(7) atom to form ZnO4 tetrahedra that share corners with two equivalent Rb(1)O8 hexagonal bipyramids,  a cornercorner with one P(2)O4 tetrahedra, corners with three equivalent P(1)O4 tetrahedra, and  an edgeedge with one Rb(1)O8 hexagonal bipyramid. In the second Zn site, Zn(2) is bonded to one O(2), one O(3), one O(4), and one O(8) atom to form ZnO4 tetrahedra that share corners with two equivalent Rb(1)O8 hexagonal bipyramids,  a cornercorner with one P(1)O4 tetrahedra, corners with three equivalent P(2)O4 tetrahedra, and  an edgeedge with one Rb(1)O8 hexagonal bipyramid. There are two inequivalent P sites. In the first P site, P(1) is bonded to one O(5), one O(6), one O(7), and one O(8) atom to form PO4 tetrahedra that share corners with two equivalent Rb(1)O8 hexagonal bipyramids,  a cornercorner with one Zn(2)O4 tetrahedra, corners with three equivalent Zn(1)O4 tetrahedra, and  an edgeedge with one Rb(1)O8 hexagonal bipyramid. In the second P site, P(2) 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 two equivalent Rb(1)O8 hexagonal bipyramids,  a cornercorner with one Zn(1)O4 tetrahedra, corners with three equivalent Zn(2)O4 tetrahedra, and  an edgeedge with one Rb(1)O8 hexagonal bipyramid. There are eight inequivalent O sites. In the first O site, O(1) is bonded in a 2-coordinate geometry to one Rb(2), one Zn(1), and one P(2) atom. In the second O site, O(2) is bonded in a 4-coordinate geometry to two equivalent Rb(1), one Zn(2), and one P(2) atom. In the third O site, O(3) is bonded in a 2-coordinate geometry to two equivalent Rb(1), one Zn(2), and one P(2) atom. In the fourth O site, O(4) is bonded in a 3-coordinate geometry to one Rb(2), one Zn(2), and one P(2) atom. In the fifth O site, O(5) is bonded in a 2-coordinate geometry to one Rb(1), one Rb(2), one Zn(1), and one P(1) atom. In the sixth O site, O(6) is bonded in a 2-coordinate geometry to one Rb(1), one Rb(2), one Zn(1), and one P(1) atom. In the seventh O site, O(7) is bonded in a 2-coordinate geometry to two equivalent Rb(1), one Zn(1), and one P(1) atom. In the eighth O site, O(8) is bonded in a 2-coordinate geometry to one Rb(2), one Zn(2), and one P(1) atom. is represented by the CIF card [CIF]
data_RbZnPO4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.499
_cell_length_b   9.003
_cell_length_c   9.092
_cell_angle_alpha   89.815
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   450.065
_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  0.782  0.502  0.687  1.0
  Rb  Rb1  1  0.282  0.498  0.313  1.0
  Rb  Rb2  1  0.258  0.991  0.198  1.0
  Rb  Rb3  1  0.758  0.009  0.802  1.0
  Zn  Zn4  1  0.791  0.671  0.092  1.0
  Zn  Zn5  1  0.291  0.329  0.908  1.0
  Zn  Zn6  1  0.753  0.175  0.423  1.0
  Zn  Zn7  1  0.253  0.825  0.577  1.0
  P  P8  1  0.789  0.308  0.098  1.0
  P  P9  1  0.289  0.692  0.902  1.0
  P  P10  1  0.257  0.194  0.578  1.0
  P  P11  1  0.757  0.806  0.422  1.0
  O  O12  1  0.211  0.192  0.746  1.0
  O  O13  1  0.711  0.808  0.254  1.0
  O  O14  1  0.046  0.278  0.497  1.0
  O  O15  1  0.546  0.722  0.503  1.0
  O  O16  1  0.498  0.278  0.541  1.0
  O  O17  1  0.998  0.722  0.459  1.0
  O  O18  1  0.273  0.034  0.519  1.0
  O  O19  1  0.773  0.966  0.481  1.0
  O  O20  1  0.640  0.291  0.952  1.0
  O  O21  1  0.140  0.709  0.048  1.0
  O  O22  1  0.063  0.274  0.067  1.0
  O  O23  1  0.563  0.726  0.933  1.0
  O  O24  1  0.258  0.534  0.836  1.0
  O  O25  1  0.758  0.466  0.164  1.0
  O  O26  1  0.193  0.808  0.789  1.0
  O  O27  1  0.693  0.192  0.211  1.0
[/CIF]
.