The material described by Tm5Co19P12 crystallizes in the hexagonal P-62m space group. There are two inequivalent Tm sites. In the first Tm site, Tm(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 Tm site, Tm(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 Tm(1), two equivalent Tm(2), one P(1), one P(3), and two equivalent P(2) atoms to form distorted CoTm3P4 tetrahedra that share corners with two equivalent Co(4)Tm2P4 tetrahedra, corners with two equivalent Co(3)Tm3P4 tetrahedra, corners with five equivalent Co(1)Tm3P4 tetrahedra, edges with two equivalent Co(1)Tm3P4 tetrahedra, edges with four equivalent Co(3)Tm3P4 tetrahedra,  a faceface with one Co(1)Tm3P4 tetrahedra, faces with two equivalent Co(4)Tm2P4 tetrahedra, and faces with two equivalent Co(3)Tm3P4 tetrahedra. In the second Co site, Co(2) is bonded in a 5-coordinate geometry to one P(1) and four equivalent P(2) atoms. In the third Co site, Co(3) is bonded to one Tm(2), two equivalent Tm(1), two equivalent P(1), and two equivalent P(2) atoms to form distorted CoTm3P4 tetrahedra that share corners with two equivalent Co(4)Tm2P4 tetrahedra, corners with two equivalent Co(1)Tm3P4 tetrahedra, corners with six equivalent Co(3)Tm3P4 tetrahedra,  an edgeedge with one Co(4)Tm2P4 tetrahedra, edges with two equivalent Co(3)Tm3P4 tetrahedra, edges with four equivalent Co(1)Tm3P4 tetrahedra, faces with two equivalent Co(1)Tm3P4 tetrahedra, and faces with three equivalent Co(3)Tm3P4 tetrahedra. In the fourth Co site, Co(4) is bonded to two equivalent Tm(2), two equivalent P(2), and two equivalent P(3) atoms to form distorted CoTm2P4 tetrahedra that share corners with four equivalent Co(4)Tm2P4 tetrahedra, corners with four equivalent Co(1)Tm3P4 tetrahedra, corners with four equivalent Co(3)Tm3P4 tetrahedra, edges with two equivalent Co(3)Tm3P4 tetrahedra, and faces with four equivalent Co(1)Tm3P4 tetrahedra. In the fifth Co site, Co(5) is bonded in a distorted trigonal planar geometry to six equivalent Tm(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 Tm(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 Tm(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 Tm(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_Tm5Co19P12
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   11.826
_cell_length_b   11.826
_cell_length_c   3.643
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   120.000
_symmetry_Int_Tables_number   1
_cell_volume   441.235
_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
  Tm  Tm0  1  0.667  0.333  0.000  1.0
  Tm  Tm1  1  0.333  0.667  1.000  1.0
  Tm  Tm2  1  0.188  0.188  0.500  1.0
  Tm  Tm3  1  0.812  1.000  0.500  1.0
  Tm  Tm4  1  0.000  0.812  0.500  1.0
  Co  Co5  1  0.822  0.200  1.000  1.0
  Co  Co6  1  0.800  0.623  0.000  1.0
  Co  Co7  1  0.377  0.178  0.000  1.0
  Co  Co8  1  0.200  0.822  1.000  1.0
  Co  Co9  1  0.623  0.800  1.000  1.0
  Co  Co10  1  0.178  0.377  1.000  1.0
  Co  Co11  1  0.553  0.553  1.000  1.0
  Co  Co12  1  0.447  1.000  1.000  1.0
  Co  Co13  1  0.000  0.447  1.000  1.0
  Co  Co14  1  0.642  0.125  0.500  1.0
  Co  Co15  1  0.875  0.516  0.500  1.0
  Co  Co16  1  0.484  0.358  0.500  1.0
  Co  Co17  1  0.125  0.642  0.500  1.0
  Co  Co18  1  0.516  0.875  0.500  1.0
  Co  Co19  1  0.358  0.484  0.500  1.0
  Co  Co20  1  0.715  0.716  0.500  1.0
  Co  Co21  1  0.285  1.000  0.500  1.0
  Co  Co22  1  1.000  0.284  0.500  1.0
  Co  Co23  1  1.000  1.000  1.000  1.0
  P  P24  1  0.367  0.367  0.000  1.0
  P  P25  1  0.633  1.000  1.000  1.0
  P  P26  1  0.000  0.633  1.000  1.0
  P  P27  1  0.833  0.313  0.500  1.0
  P  P28  1  0.687  0.520  0.500  1.0
  P  P29  1  0.480  0.167  0.500  1.0
  P  P30  1  0.313  0.833  0.500  1.0
  P  P31  1  0.520  0.687  0.500  1.0
  P  P32  1  0.167  0.480  0.500  1.0
  P  P33  1  0.821  0.821  0.000  1.0
  P  P34  1  0.179  1.000  0.000  1.0
  P  P35  1  0.000  0.179  0.000  1.0
[/CIF]
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The material described by Tm5Co19P12 crystallizes in the hexagonal P-62m space group. There are two inequivalent Tm sites. In the first Tm site, Tm(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 Tm site, Tm(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 Tm(1), two equivalent Tm(2), one P(1), one P(3), and two equivalent P(2) atoms to form distorted CoTm3P4 tetrahedra that share corners with two equivalent Co(4)Tm2P4 tetrahedra, corners with two equivalent Co(3)Tm3P4 tetrahedra, corners with five equivalent Co(1)Tm3P4 tetrahedra, edges with two equivalent Co(1)Tm3P4 tetrahedra, edges with four equivalent Co(3)Tm3P4 tetrahedra,  a faceface with one Co(1)Tm3P4 tetrahedra, faces with two equivalent Co(4)Tm2P4 tetrahedra, and faces with two equivalent Co(3)Tm3P4 tetrahedra. In the second Co site, Co(2) is bonded in a 5-coordinate geometry to one P(1) and four equivalent P(2) atoms. In the third Co site, Co(3) is bonded to one Tm(2), two equivalent Tm(1), two equivalent P(1), and two equivalent P(2) atoms to form distorted CoTm3P4 tetrahedra that share corners with two equivalent Co(4)Tm2P4 tetrahedra, corners with two equivalent Co(1)Tm3P4 tetrahedra, corners with six equivalent Co(3)Tm3P4 tetrahedra,  an edgeedge with one Co(4)Tm2P4 tetrahedra, edges with two equivalent Co(3)Tm3P4 tetrahedra, edges with four equivalent Co(1)Tm3P4 tetrahedra, faces with two equivalent Co(1)Tm3P4 tetrahedra, and faces with three equivalent Co(3)Tm3P4 tetrahedra. In the fourth Co site, Co(4) is bonded to two equivalent Tm(2), two equivalent P(2), and two equivalent P(3) atoms to form distorted CoTm2P4 tetrahedra that share corners with four equivalent Co(4)Tm2P4 tetrahedra, corners with four equivalent Co(1)Tm3P4 tetrahedra, corners with four equivalent Co(3)Tm3P4 tetrahedra, edges with two equivalent Co(3)Tm3P4 tetrahedra, and faces with four equivalent Co(1)Tm3P4 tetrahedra. In the fifth Co site, Co(5) is bonded in a distorted trigonal planar geometry to six equivalent Tm(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 Tm(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 Tm(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 Tm(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_Tm5Co19P12
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   11.826
_cell_length_b   11.826
_cell_length_c   3.643
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   120.000
_symmetry_Int_Tables_number   1
_cell_volume   441.235
_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
  Tm  Tm0  1  0.667  0.333  0.000  1.0
  Tm  Tm1  1  0.333  0.667  1.000  1.0
  Tm  Tm2  1  0.188  0.188  0.500  1.0
  Tm  Tm3  1  0.812  1.000  0.500  1.0
  Tm  Tm4  1  0.000  0.812  0.500  1.0
  Co  Co5  1  0.822  0.200  1.000  1.0
  Co  Co6  1  0.800  0.623  0.000  1.0
  Co  Co7  1  0.377  0.178  0.000  1.0
  Co  Co8  1  0.200  0.822  1.000  1.0
  Co  Co9  1  0.623  0.800  1.000  1.0
  Co  Co10  1  0.178  0.377  1.000  1.0
  Co  Co11  1  0.553  0.553  1.000  1.0
  Co  Co12  1  0.447  1.000  1.000  1.0
  Co  Co13  1  0.000  0.447  1.000  1.0
  Co  Co14  1  0.642  0.125  0.500  1.0
  Co  Co15  1  0.875  0.516  0.500  1.0
  Co  Co16  1  0.484  0.358  0.500  1.0
  Co  Co17  1  0.125  0.642  0.500  1.0
  Co  Co18  1  0.516  0.875  0.500  1.0
  Co  Co19  1  0.358  0.484  0.500  1.0
  Co  Co20  1  0.715  0.716  0.500  1.0
  Co  Co21  1  0.285  1.000  0.500  1.0
  Co  Co22  1  1.000  0.284  0.500  1.0
  Co  Co23  1  1.000  1.000  1.000  1.0
  P  P24  1  0.367  0.367  0.000  1.0
  P  P25  1  0.633  1.000  1.000  1.0
  P  P26  1  0.000  0.633  1.000  1.0
  P  P27  1  0.833  0.313  0.500  1.0
  P  P28  1  0.687  0.520  0.500  1.0
  P  P29  1  0.480  0.167  0.500  1.0
  P  P30  1  0.313  0.833  0.500  1.0
  P  P31  1  0.520  0.687  0.500  1.0
  P  P32  1  0.167  0.480  0.500  1.0
  P  P33  1  0.821  0.821  0.000  1.0
  P  P34  1  0.179  1.000  0.000  1.0
  P  P35  1  0.000  0.179  0.000  1.0
[/CIF]
.