The material structure described by U2Tc3Si5 crystallizes in the tetragonal P4/mnc space group. U(1) is bonded in a 11-coordinate geometry to two equivalent Tc(1), two equivalent Tc(2), two equivalent Si(1), three equivalent Si(3), and four equivalent Si(2) atoms. There are two inequivalent Tc sites. In the first Tc site, Tc(1) is bonded in a 8-coordinate geometry to two equivalent U(1), two equivalent Si(1), two equivalent Si(2), and two equivalent Si(3) atoms. In the second Tc site, Tc(2) is bonded to four equivalent U(1), two equivalent Tc(2), two equivalent Si(2), and four equivalent Si(3) atoms to form a mixture of distorted face and corner-sharing TcU4Si6Tc2 cuboctahedra. There are three inequivalent Si sites. In the first Si site, Si(1) is bonded in a 9-coordinate geometry to four equivalent U(1), four equivalent Tc(1), and one Si(1) atom. In the second Si site, Si(2) is bonded in a 11-coordinate geometry to four equivalent U(1), one Tc(2), two equivalent Tc(1), two equivalent Si(2), and two equivalent Si(3) atoms. In the third Si site, Si(3) is bonded in a 9-coordinate geometry to three equivalent U(1), two equivalent Tc(1), two equivalent Tc(2), and two equivalent Si(2) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_U2Si5Tc3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   10.940
_cell_length_b   10.940
_cell_length_c   5.481
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   656.070
_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
  U  U0  1  0.236  0.074  0.500  1.0
  U  U1  1  0.764  0.926  0.500  1.0
  U  U2  1  0.926  0.236  0.500  1.0
  U  U3  1  0.074  0.764  0.500  1.0
  U  U4  1  0.574  0.736  0.000  1.0
  U  U5  1  0.736  0.426  0.000  1.0
  U  U6  1  0.264  0.574  0.000  1.0
  U  U7  1  0.426  0.264  0.000  1.0
  Si  Si8  1  0.500  0.500  0.765  1.0
  Si  Si9  1  0.000  0.000  0.735  1.0
  Si  Si10  1  0.500  0.500  0.235  1.0
  Si  Si11  1  0.000  0.000  0.265  1.0
  Si  Si12  1  0.674  0.174  0.750  1.0
  Si  Si13  1  0.174  0.326  0.750  1.0
  Si  Si14  1  0.826  0.674  0.750  1.0
  Si  Si15  1  0.326  0.826  0.750  1.0
  Si  Si16  1  0.326  0.826  0.250  1.0
  Si  Si17  1  0.826  0.674  0.250  1.0
  Si  Si18  1  0.174  0.326  0.250  1.0
  Si  Si19  1  0.674  0.174  0.250  1.0
  Si  Si20  1  0.475  0.184  0.500  1.0
  Si  Si21  1  0.525  0.816  0.500  1.0
  Si  Si22  1  0.816  0.475  0.500  1.0
  Si  Si23  1  0.316  0.025  0.000  1.0
  Si  Si24  1  0.684  0.975  0.000  1.0
  Si  Si25  1  0.975  0.316  0.000  1.0
  Si  Si26  1  0.025  0.684  0.000  1.0
  Si  Si27  1  0.184  0.525  0.500  1.0
  Tc  Tc28  1  0.142  0.876  0.000  1.0
  Tc  Tc29  1  0.500  0.000  0.750  1.0
  Tc  Tc30  1  0.000  0.500  0.250  1.0
  Tc  Tc31  1  0.500  0.000  0.250  1.0
  Tc  Tc32  1  0.358  0.376  0.500  1.0
  Tc  Tc33  1  0.642  0.624  0.500  1.0
  Tc  Tc34  1  0.624  0.358  0.500  1.0
  Tc  Tc35  1  0.376  0.642  0.500  1.0
  Tc  Tc36  1  0.876  0.858  0.000  1.0
  Tc  Tc37  1  0.858  0.124  0.000  1.0
  Tc  Tc38  1  0.124  0.142  0.000  1.0
  Tc  Tc39  1  0.000  0.500  0.750  1.0
[/CIF]
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The material structure described by U2Tc3Si5 crystallizes in the tetragonal P4/mnc space group. U(1) is bonded in a 11-coordinate geometry to two equivalent Tc(1), two equivalent Tc(2), two equivalent Si(1), three equivalent Si(3), and four equivalent Si(2) atoms. There are two inequivalent Tc sites. In the first Tc site, Tc(1) is bonded in a 8-coordinate geometry to two equivalent U(1), two equivalent Si(1), two equivalent Si(2), and two equivalent Si(3) atoms. In the second Tc site, Tc(2) is bonded to four equivalent U(1), two equivalent Tc(2), two equivalent Si(2), and four equivalent Si(3) atoms to form a mixture of distorted face and corner-sharing TcU4Si6Tc2 cuboctahedra. There are three inequivalent Si sites. In the first Si site, Si(1) is bonded in a 9-coordinate geometry to four equivalent U(1), four equivalent Tc(1), and one Si(1) atom. In the second Si site, Si(2) is bonded in a 11-coordinate geometry to four equivalent U(1), one Tc(2), two equivalent Tc(1), two equivalent Si(2), and two equivalent Si(3) atoms. In the third Si site, Si(3) is bonded in a 9-coordinate geometry to three equivalent U(1), two equivalent Tc(1), two equivalent Tc(2), and two equivalent Si(2) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_U2Si5Tc3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   10.940
_cell_length_b   10.940
_cell_length_c   5.481
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   656.070
_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
  U  U0  1  0.236  0.074  0.500  1.0
  U  U1  1  0.764  0.926  0.500  1.0
  U  U2  1  0.926  0.236  0.500  1.0
  U  U3  1  0.074  0.764  0.500  1.0
  U  U4  1  0.574  0.736  0.000  1.0
  U  U5  1  0.736  0.426  0.000  1.0
  U  U6  1  0.264  0.574  0.000  1.0
  U  U7  1  0.426  0.264  0.000  1.0
  Si  Si8  1  0.500  0.500  0.765  1.0
  Si  Si9  1  0.000  0.000  0.735  1.0
  Si  Si10  1  0.500  0.500  0.235  1.0
  Si  Si11  1  0.000  0.000  0.265  1.0
  Si  Si12  1  0.674  0.174  0.750  1.0
  Si  Si13  1  0.174  0.326  0.750  1.0
  Si  Si14  1  0.826  0.674  0.750  1.0
  Si  Si15  1  0.326  0.826  0.750  1.0
  Si  Si16  1  0.326  0.826  0.250  1.0
  Si  Si17  1  0.826  0.674  0.250  1.0
  Si  Si18  1  0.174  0.326  0.250  1.0
  Si  Si19  1  0.674  0.174  0.250  1.0
  Si  Si20  1  0.475  0.184  0.500  1.0
  Si  Si21  1  0.525  0.816  0.500  1.0
  Si  Si22  1  0.816  0.475  0.500  1.0
  Si  Si23  1  0.316  0.025  0.000  1.0
  Si  Si24  1  0.684  0.975  0.000  1.0
  Si  Si25  1  0.975  0.316  0.000  1.0
  Si  Si26  1  0.025  0.684  0.000  1.0
  Si  Si27  1  0.184  0.525  0.500  1.0
  Tc  Tc28  1  0.142  0.876  0.000  1.0
  Tc  Tc29  1  0.500  0.000  0.750  1.0
  Tc  Tc30  1  0.000  0.500  0.250  1.0
  Tc  Tc31  1  0.500  0.000  0.250  1.0
  Tc  Tc32  1  0.358  0.376  0.500  1.0
  Tc  Tc33  1  0.642  0.624  0.500  1.0
  Tc  Tc34  1  0.624  0.358  0.500  1.0
  Tc  Tc35  1  0.376  0.642  0.500  1.0
  Tc  Tc36  1  0.876  0.858  0.000  1.0
  Tc  Tc37  1  0.858  0.124  0.000  1.0
  Tc  Tc38  1  0.124  0.142  0.000  1.0
  Tc  Tc39  1  0.000  0.500  0.750  1.0
[/CIF]
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