The structure described by PdPbSiP4O14 crystallizes in the monoclinic P2_1/m space group. Pd(1) is bonded in a square co-planar geometry to two equivalent O(3) and two equivalent O(4) atoms. Pb(1) is bonded in a 2-coordinate geometry to two equivalent O(7) atoms. Si(1) is bonded to two equivalent O(2), two equivalent O(5), and two equivalent O(6) atoms to form SiO6 octahedra that share corners with two equivalent P(1)O4 tetrahedra and corners with four equivalent P(2)O4 tetrahedra. There are two inequivalent P sites. In the first P site, 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  a cornercorner with one Si(1)O6 octahedra and  a cornercorner with one P(2)O4 tetrahedra. The corner-sharing octahedral tilt angles are 43°. In the second P site, P(2) is bonded to one O(1), one O(5), one O(6), and one O(7) atom to form PO4 tetrahedra that share corners with two equivalent Si(1)O6 octahedra and  a cornercorner with one P(1)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 36-42°. There are seven inequivalent O sites. In the first O site, O(6) is bonded in a bent 150 degrees geometry to one Si(1) and one P(2) atom. In the second O site, O(7) is bonded in a distorted single-bond geometry to one Pb(1) and one P(2) atom. In the third O site, O(1) is bonded in a bent 120 degrees geometry to one P(1) and one P(2) atom. In the fourth O site, O(2) is bonded in a bent 150 degrees geometry to one Si(1) and one P(1) atom. In the fifth O site, O(3) is bonded in a distorted bent 120 degrees geometry to one Pd(1) and one P(1) atom. In the sixth O site, O(4) is bonded in a distorted bent 120 degrees geometry to one Pd(1) and one P(1) atom. In the seventh O site, O(5) is bonded in a bent 150 degrees geometry to one Si(1) and one P(2) atom. is represented by the CIF card [CIF]
data_SiP4PdPbO14
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   17.408
_cell_length_b   4.657
_cell_length_c   6.535
_cell_angle_alpha   77.946
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   518.163
_cell_formula_units_Z   2
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
  Si  Si0  1  0.000  0.000  0.000  1.0
  Si  Si1  1  0.500  0.000  0.000  1.0
  P  P2  1  0.123  0.117  0.647  1.0
  P  P3  1  0.623  0.883  0.353  1.0
  P  P4  1  0.877  0.883  0.353  1.0
  P  P5  1  0.377  0.117  0.647  1.0
  P  P6  1  0.086  0.432  0.222  1.0
  P  P7  1  0.586  0.568  0.778  1.0
  P  P8  1  0.914  0.568  0.778  1.0
  P  P9  1  0.414  0.432  0.222  1.0
  Pd  Pd10  1  0.250  0.619  0.643  1.0
  Pd  Pd11  1  0.750  0.381  0.357  1.0
  Pb  Pb12  1  0.250  0.103  0.140  1.0
  Pb  Pb13  1  0.750  0.897  0.860  1.0
  O  O14  1  0.071  0.322  0.472  1.0
  O  O15  1  0.571  0.678  0.528  1.0
  O  O16  1  0.929  0.678  0.528  1.0
  O  O17  1  0.429  0.322  0.472  1.0
  O  O18  1  0.068  0.933  0.804  1.0
  O  O19  1  0.568  0.067  0.196  1.0
  O  O20  1  0.932  0.067  0.196  1.0
  O  O21  1  0.432  0.933  0.804  1.0
  O  O22  1  0.170  0.927  0.524  1.0
  O  O23  1  0.670  0.073  0.476  1.0
  O  O24  1  0.830  0.073  0.476  1.0
  O  O25  1  0.330  0.927  0.524  1.0
  O  O26  1  0.171  0.309  0.763  1.0
  O  O27  1  0.671  0.691  0.237  1.0
  O  O28  1  0.829  0.691  0.237  1.0
  O  O29  1  0.329  0.309  0.763  1.0
  O  O30  1  0.075  0.159  0.125  1.0
  O  O31  1  0.575  0.841  0.875  1.0
  O  O32  1  0.925  0.841  0.875  1.0
  O  O33  1  0.425  0.159  0.125  1.0
  O  O34  1  0.022  0.656  0.159  1.0
  O  O35  1  0.522  0.344  0.841  1.0
  O  O36  1  0.978  0.344  0.841  1.0
  O  O37  1  0.478  0.656  0.159  1.0
  O  O38  1  0.169  0.534  0.188  1.0
  O  O39  1  0.669  0.466  0.812  1.0
  O  O40  1  0.831  0.466  0.812  1.0
  O  O41  1  0.331  0.534  0.188  1.0
[/CIF]
.
The structure described by PdPbSiP4O14 crystallizes in the monoclinic P2_1/m space group. Pd(1) is bonded in a square co-planar geometry to two equivalent O(3) and two equivalent O(4) atoms. Pb(1) is bonded in a 2-coordinate geometry to two equivalent O(7) atoms. Si(1) is bonded to two equivalent O(2), two equivalent O(5), and two equivalent O(6) atoms to form SiO6 octahedra that share corners with two equivalent P(1)O4 tetrahedra and corners with four equivalent P(2)O4 tetrahedra. There are two inequivalent P sites. In the first P site, 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  a cornercorner with one Si(1)O6 octahedra and  a cornercorner with one P(2)O4 tetrahedra. The corner-sharing octahedral tilt angles are 43°. In the second P site, P(2) is bonded to one O(1), one O(5), one O(6), and one O(7) atom to form PO4 tetrahedra that share corners with two equivalent Si(1)O6 octahedra and  a cornercorner with one P(1)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 36-42°. There are seven inequivalent O sites. In the first O site, O(6) is bonded in a bent 150 degrees geometry to one Si(1) and one P(2) atom. In the second O site, O(7) is bonded in a distorted single-bond geometry to one Pb(1) and one P(2) atom. In the third O site, O(1) is bonded in a bent 120 degrees geometry to one P(1) and one P(2) atom. In the fourth O site, O(2) is bonded in a bent 150 degrees geometry to one Si(1) and one P(1) atom. In the fifth O site, O(3) is bonded in a distorted bent 120 degrees geometry to one Pd(1) and one P(1) atom. In the sixth O site, O(4) is bonded in a distorted bent 120 degrees geometry to one Pd(1) and one P(1) atom. In the seventh O site, O(5) is bonded in a bent 150 degrees geometry to one Si(1) and one P(2) atom. is represented by the CIF card [CIF]
data_SiP4PdPbO14
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   17.408
_cell_length_b   4.657
_cell_length_c   6.535
_cell_angle_alpha   77.946
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   518.163
_cell_formula_units_Z   2
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
  Si  Si0  1  0.000  0.000  0.000  1.0
  Si  Si1  1  0.500  0.000  0.000  1.0
  P  P2  1  0.123  0.117  0.647  1.0
  P  P3  1  0.623  0.883  0.353  1.0
  P  P4  1  0.877  0.883  0.353  1.0
  P  P5  1  0.377  0.117  0.647  1.0
  P  P6  1  0.086  0.432  0.222  1.0
  P  P7  1  0.586  0.568  0.778  1.0
  P  P8  1  0.914  0.568  0.778  1.0
  P  P9  1  0.414  0.432  0.222  1.0
  Pd  Pd10  1  0.250  0.619  0.643  1.0
  Pd  Pd11  1  0.750  0.381  0.357  1.0
  Pb  Pb12  1  0.250  0.103  0.140  1.0
  Pb  Pb13  1  0.750  0.897  0.860  1.0
  O  O14  1  0.071  0.322  0.472  1.0
  O  O15  1  0.571  0.678  0.528  1.0
  O  O16  1  0.929  0.678  0.528  1.0
  O  O17  1  0.429  0.322  0.472  1.0
  O  O18  1  0.068  0.933  0.804  1.0
  O  O19  1  0.568  0.067  0.196  1.0
  O  O20  1  0.932  0.067  0.196  1.0
  O  O21  1  0.432  0.933  0.804  1.0
  O  O22  1  0.170  0.927  0.524  1.0
  O  O23  1  0.670  0.073  0.476  1.0
  O  O24  1  0.830  0.073  0.476  1.0
  O  O25  1  0.330  0.927  0.524  1.0
  O  O26  1  0.171  0.309  0.763  1.0
  O  O27  1  0.671  0.691  0.237  1.0
  O  O28  1  0.829  0.691  0.237  1.0
  O  O29  1  0.329  0.309  0.763  1.0
  O  O30  1  0.075  0.159  0.125  1.0
  O  O31  1  0.575  0.841  0.875  1.0
  O  O32  1  0.925  0.841  0.875  1.0
  O  O33  1  0.425  0.159  0.125  1.0
  O  O34  1  0.022  0.656  0.159  1.0
  O  O35  1  0.522  0.344  0.841  1.0
  O  O36  1  0.978  0.344  0.841  1.0
  O  O37  1  0.478  0.656  0.159  1.0
  O  O38  1  0.169  0.534  0.188  1.0
  O  O39  1  0.669  0.466  0.812  1.0
  O  O40  1  0.831  0.466  0.812  1.0
  O  O41  1  0.331  0.534  0.188  1.0
[/CIF]
.