The structure described by Zn2Si2As3P is Stannite-like structured and crystallizes in the monoclinic C2 space group. Zn(1) is bonded to one As(1), two equivalent As(2), and one P(1) atom to form ZnAs3P tetrahedra that share corners with four equivalent Zn(1)As3P tetrahedra and corners with eight equivalent Si(1)As3P tetrahedra. Si(1) is bonded to one As(1), two equivalent As(2), and one P(1) atom to form SiAs3P tetrahedra that share corners with four equivalent Si(1)As3P tetrahedra and corners with eight equivalent Zn(1)As3P tetrahedra. There are two inequivalent As sites. In the first As site, As(1) is bonded to two equivalent Zn(1) and two equivalent Si(1) atoms to form AsZn2Si2 tetrahedra that share corners with four equivalent P(1)Zn2Si2 tetrahedra and corners with eight equivalent As(2)Zn2Si2 tetrahedra. In the second As site, As(2) is bonded to two equivalent Zn(1) and two equivalent Si(1) atoms to form AsZn2Si2 tetrahedra that share corners with four equivalent As(1)Zn2Si2 tetrahedra, corners with four equivalent As(2)Zn2Si2 tetrahedra, and corners with four equivalent P(1)Zn2Si2 tetrahedra. P(1) is bonded to two equivalent Zn(1) and two equivalent Si(1) atoms to form PZn2Si2 tetrahedra that share corners with four equivalent As(1)Zn2Si2 tetrahedra and corners with eight equivalent As(2)Zn2Si2 tetrahedra. is represented by the CIF card [CIF]
data_Zn2Si2As3P
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.602
_cell_length_b   5.620
_cell_length_c   6.737
_cell_angle_alpha   65.349
_cell_angle_beta   65.737
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   171.946
_cell_formula_units_Z   1
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
  Zn  Zn0  1  0.740  0.239  0.506  1.0
  Zn  Zn1  1  0.010  0.995  0.994  1.0
  Si  Si2  1  0.255  0.754  0.506  1.0
  Si  Si3  1  0.495  0.510  0.994  1.0
  As  As4  1  0.875  0.391  0.750  1.0
  As  As5  1  0.138  0.126  0.250  1.0
  As  As6  1  0.612  0.626  0.250  1.0
  P  P7  1  0.375  0.859  0.750  1.0
[/CIF]
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The structure described by Zn2Si2As3P is Stannite-like structured and crystallizes in the monoclinic C2 space group. Zn(1) is bonded to one As(1), two equivalent As(2), and one P(1) atom to form ZnAs3P tetrahedra that share corners with four equivalent Zn(1)As3P tetrahedra and corners with eight equivalent Si(1)As3P tetrahedra. Si(1) is bonded to one As(1), two equivalent As(2), and one P(1) atom to form SiAs3P tetrahedra that share corners with four equivalent Si(1)As3P tetrahedra and corners with eight equivalent Zn(1)As3P tetrahedra. There are two inequivalent As sites. In the first As site, As(1) is bonded to two equivalent Zn(1) and two equivalent Si(1) atoms to form AsZn2Si2 tetrahedra that share corners with four equivalent P(1)Zn2Si2 tetrahedra and corners with eight equivalent As(2)Zn2Si2 tetrahedra. In the second As site, As(2) is bonded to two equivalent Zn(1) and two equivalent Si(1) atoms to form AsZn2Si2 tetrahedra that share corners with four equivalent As(1)Zn2Si2 tetrahedra, corners with four equivalent As(2)Zn2Si2 tetrahedra, and corners with four equivalent P(1)Zn2Si2 tetrahedra. P(1) is bonded to two equivalent Zn(1) and two equivalent Si(1) atoms to form PZn2Si2 tetrahedra that share corners with four equivalent As(1)Zn2Si2 tetrahedra and corners with eight equivalent As(2)Zn2Si2 tetrahedra. is represented by the CIF card [CIF]
data_Zn2Si2As3P
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.602
_cell_length_b   5.620
_cell_length_c   6.737
_cell_angle_alpha   65.349
_cell_angle_beta   65.737
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   171.946
_cell_formula_units_Z   1
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
  Zn  Zn0  1  0.740  0.239  0.506  1.0
  Zn  Zn1  1  0.010  0.995  0.994  1.0
  Si  Si2  1  0.255  0.754  0.506  1.0
  Si  Si3  1  0.495  0.510  0.994  1.0
  As  As4  1  0.875  0.391  0.750  1.0
  As  As5  1  0.138  0.126  0.250  1.0
  As  As6  1  0.612  0.626  0.250  1.0
  P  P7  1  0.375  0.859  0.750  1.0
[/CIF]
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