The material described by Y5Co19P12 crystallizes in the hexagonal P-62m space group. There are two inequivalent Y sites. In the first Y site, Y(1) is bonded in a 15-coordinate geometry to three equivalent Co(1), six equivalent Co(3), and six equivalent P(2) atoms. In the second Y site, Y(2) is bonded in a 16-coordinate geometry to two equivalent Co(3), two equivalent Co(4), two equivalent Co(5), four equivalent Co(1), two equivalent P(1), and four equivalent P(3) atoms. There are five inequivalent Co sites. In the first Co site, Co(1) is bonded to one Y(1), two equivalent Y(2), one P(1), one P(3), and two equivalent P(2) atoms to form distorted CoY3P4 tetrahedra that share corners with two equivalent Co(4)Y2P4 tetrahedra, corners with two equivalent Co(3)Y3P4 tetrahedra, corners with five equivalent Co(1)Y3P4 tetrahedra, edges with two equivalent Co(1)Y3P4 tetrahedra, edges with four equivalent Co(3)Y3P4 tetrahedra,  a faceface with one Co(1)Y3P4 tetrahedra, faces with two equivalent Co(4)Y2P4 tetrahedra, and faces with two equivalent Co(3)Y3P4 tetrahedra. In the second Co site, Co(2) is bonded in a 1-coordinate geometry to one P(1) and four equivalent P(2) atoms. In the third Co site, Co(3) is bonded to one Y(2), two equivalent Y(1), two equivalent P(1), and two equivalent P(2) atoms to form distorted CoY3P4 tetrahedra that share corners with two equivalent Co(4)Y2P4 tetrahedra, corners with two equivalent Co(1)Y3P4 tetrahedra, corners with six equivalent Co(3)Y3P4 tetrahedra,  an edgeedge with one Co(4)Y2P4 tetrahedra, edges with two equivalent Co(3)Y3P4 tetrahedra, edges with four equivalent Co(1)Y3P4 tetrahedra, faces with two equivalent Co(1)Y3P4 tetrahedra, and faces with three equivalent Co(3)Y3P4 tetrahedra. In the fourth Co site, Co(4) is bonded to two equivalent Y(2), two equivalent P(2), and two equivalent P(3) atoms to form distorted CoY2P4 tetrahedra that share corners with four equivalent Co(4)Y2P4 tetrahedra, corners with four equivalent Co(1)Y3P4 tetrahedra, corners with four equivalent Co(3)Y3P4 tetrahedra, edges with two equivalent Co(3)Y3P4 tetrahedra, and faces with four equivalent Co(1)Y3P4 tetrahedra. In the fifth Co site, Co(5) is bonded in a distorted trigonal planar geometry to six equivalent Y(2) and three equivalent P(3) atoms. There are three inequivalent P sites. In the first P site, P(3) is bonded in a 9-coordinate geometry to four equivalent Y(2), one Co(5), two equivalent Co(1), and two equivalent Co(4) atoms. In the second P site, P(1) is bonded in a 9-coordinate geometry to two equivalent Y(2), one Co(2), two equivalent Co(1), and four equivalent Co(3) atoms. In the third P site, P(2) is bonded in a 9-coordinate geometry to two equivalent Y(1), one Co(4), two equivalent Co(1), two equivalent Co(2), and two equivalent Co(3) atoms. is represented by the CIF card [CIF]
data_Y5Co19P12
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   11.893
_cell_length_b   11.893
_cell_length_c   3.672
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   120.002
_symmetry_Int_Tables_number   1
_cell_volume   449.766
_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
  Y  Y0  1  0.333  0.667  0.500  1.0
  Y  Y1  1  0.667  0.333  0.500  1.0
  Y  Y2  1  0.000  0.188  0.000  1.0
  Y  Y3  1  0.812  0.812  0.000  1.0
  Y  Y4  1  0.188  1.000  0.000  1.0
  Co  Co5  1  0.622  0.823  0.500  1.0
  Co  Co6  1  0.177  0.800  0.500  1.0
  Co  Co7  1  0.200  0.378  0.500  1.0
  Co  Co8  1  0.378  0.200  0.500  1.0
  Co  Co9  1  0.823  0.622  0.500  1.0
  Co  Co10  1  0.800  0.177  0.500  1.0
  Co  Co11  1  0.000  0.554  0.500  1.0
  Co  Co12  1  0.446  0.446  0.500  1.0
  Co  Co13  1  0.554  1.000  0.500  1.0
  Co  Co14  1  0.516  0.641  0.000  1.0
  Co  Co15  1  0.359  0.875  0.000  1.0
  Co  Co16  1  0.125  0.484  0.000  1.0
  Co  Co17  1  0.484  0.125  0.000  1.0
  Co  Co18  1  0.641  0.516  0.000  1.0
  Co  Co19  1  0.875  0.359  0.000  1.0
  Co  Co20  1  0.000  0.715  0.000  1.0
  Co  Co21  1  0.285  0.285  0.000  1.0
  Co  Co22  1  0.715  0.000  0.000  1.0
  Co  Co23  1  0.000  1.000  0.500  1.0
  P  P24  1  0.000  0.369  0.500  1.0
  P  P25  1  0.631  0.631  0.500  1.0
  P  P26  1  0.369  1.000  0.500  1.0
  P  P27  1  0.521  0.833  0.000  1.0
  P  P28  1  0.167  0.688  0.000  1.0
  P  P29  1  0.312  0.479  0.000  1.0
  P  P30  1  0.479  0.312  0.000  1.0
  P  P31  1  0.833  0.521  0.000  1.0
  P  P32  1  0.688  0.167  0.000  1.0
  P  P33  1  0.000  0.820  0.500  1.0
  P  P34  1  0.180  0.180  0.500  1.0
  P  P35  1  0.820  0.000  0.500  1.0
[/CIF]
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The material described by Y5Co19P12 crystallizes in the hexagonal P-62m space group. There are two inequivalent Y sites. In the first Y site, Y(1) is bonded in a 15-coordinate geometry to three equivalent Co(1), six equivalent Co(3), and six equivalent P(2) atoms. In the second Y site, Y(2) is bonded in a 16-coordinate geometry to two equivalent Co(3), two equivalent Co(4), two equivalent Co(5), four equivalent Co(1), two equivalent P(1), and four equivalent P(3) atoms. There are five inequivalent Co sites. In the first Co site, Co(1) is bonded to one Y(1), two equivalent Y(2), one P(1), one P(3), and two equivalent P(2) atoms to form distorted CoY3P4 tetrahedra that share corners with two equivalent Co(4)Y2P4 tetrahedra, corners with two equivalent Co(3)Y3P4 tetrahedra, corners with five equivalent Co(1)Y3P4 tetrahedra, edges with two equivalent Co(1)Y3P4 tetrahedra, edges with four equivalent Co(3)Y3P4 tetrahedra,  a faceface with one Co(1)Y3P4 tetrahedra, faces with two equivalent Co(4)Y2P4 tetrahedra, and faces with two equivalent Co(3)Y3P4 tetrahedra. In the second Co site, Co(2) is bonded in a 1-coordinate geometry to one P(1) and four equivalent P(2) atoms. In the third Co site, Co(3) is bonded to one Y(2), two equivalent Y(1), two equivalent P(1), and two equivalent P(2) atoms to form distorted CoY3P4 tetrahedra that share corners with two equivalent Co(4)Y2P4 tetrahedra, corners with two equivalent Co(1)Y3P4 tetrahedra, corners with six equivalent Co(3)Y3P4 tetrahedra,  an edgeedge with one Co(4)Y2P4 tetrahedra, edges with two equivalent Co(3)Y3P4 tetrahedra, edges with four equivalent Co(1)Y3P4 tetrahedra, faces with two equivalent Co(1)Y3P4 tetrahedra, and faces with three equivalent Co(3)Y3P4 tetrahedra. In the fourth Co site, Co(4) is bonded to two equivalent Y(2), two equivalent P(2), and two equivalent P(3) atoms to form distorted CoY2P4 tetrahedra that share corners with four equivalent Co(4)Y2P4 tetrahedra, corners with four equivalent Co(1)Y3P4 tetrahedra, corners with four equivalent Co(3)Y3P4 tetrahedra, edges with two equivalent Co(3)Y3P4 tetrahedra, and faces with four equivalent Co(1)Y3P4 tetrahedra. In the fifth Co site, Co(5) is bonded in a distorted trigonal planar geometry to six equivalent Y(2) and three equivalent P(3) atoms. There are three inequivalent P sites. In the first P site, P(3) is bonded in a 9-coordinate geometry to four equivalent Y(2), one Co(5), two equivalent Co(1), and two equivalent Co(4) atoms. In the second P site, P(1) is bonded in a 9-coordinate geometry to two equivalent Y(2), one Co(2), two equivalent Co(1), and four equivalent Co(3) atoms. In the third P site, P(2) is bonded in a 9-coordinate geometry to two equivalent Y(1), one Co(4), two equivalent Co(1), two equivalent Co(2), and two equivalent Co(3) atoms. is represented by the CIF card [CIF]
data_Y5Co19P12
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   11.893
_cell_length_b   11.893
_cell_length_c   3.672
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   120.002
_symmetry_Int_Tables_number   1
_cell_volume   449.766
_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
  Y  Y0  1  0.333  0.667  0.500  1.0
  Y  Y1  1  0.667  0.333  0.500  1.0
  Y  Y2  1  0.000  0.188  0.000  1.0
  Y  Y3  1  0.812  0.812  0.000  1.0
  Y  Y4  1  0.188  1.000  0.000  1.0
  Co  Co5  1  0.622  0.823  0.500  1.0
  Co  Co6  1  0.177  0.800  0.500  1.0
  Co  Co7  1  0.200  0.378  0.500  1.0
  Co  Co8  1  0.378  0.200  0.500  1.0
  Co  Co9  1  0.823  0.622  0.500  1.0
  Co  Co10  1  0.800  0.177  0.500  1.0
  Co  Co11  1  0.000  0.554  0.500  1.0
  Co  Co12  1  0.446  0.446  0.500  1.0
  Co  Co13  1  0.554  1.000  0.500  1.0
  Co  Co14  1  0.516  0.641  0.000  1.0
  Co  Co15  1  0.359  0.875  0.000  1.0
  Co  Co16  1  0.125  0.484  0.000  1.0
  Co  Co17  1  0.484  0.125  0.000  1.0
  Co  Co18  1  0.641  0.516  0.000  1.0
  Co  Co19  1  0.875  0.359  0.000  1.0
  Co  Co20  1  0.000  0.715  0.000  1.0
  Co  Co21  1  0.285  0.285  0.000  1.0
  Co  Co22  1  0.715  0.000  0.000  1.0
  Co  Co23  1  0.000  1.000  0.500  1.0
  P  P24  1  0.000  0.369  0.500  1.0
  P  P25  1  0.631  0.631  0.500  1.0
  P  P26  1  0.369  1.000  0.500  1.0
  P  P27  1  0.521  0.833  0.000  1.0
  P  P28  1  0.167  0.688  0.000  1.0
  P  P29  1  0.312  0.479  0.000  1.0
  P  P30  1  0.479  0.312  0.000  1.0
  P  P31  1  0.833  0.521  0.000  1.0
  P  P32  1  0.688  0.167  0.000  1.0
  P  P33  1  0.000  0.820  0.500  1.0
  P  P34  1  0.180  0.180  0.500  1.0
  P  P35  1  0.820  0.000  0.500  1.0
[/CIF]
.