The structure described by Ti3As crystallizes in the tetragonal P4_2/n space group. There are three inequivalent Ti sites. In the first Ti site, Ti(1) is bonded in a distorted bent 150 degrees geometry to two equivalent As(1) atoms. In the second Ti site, Ti(2) is bonded in a 4-coordinate geometry to four equivalent As(1) atoms. In the third Ti site, Ti(3) is bonded in a 3-coordinate geometry to three equivalent As(1) atoms. As(1) is bonded in a 9-coordinate geometry to two equivalent Ti(1), three equivalent Ti(3), and four equivalent Ti(2) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_Ti3As
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.099
_cell_length_b   10.140
_cell_length_c   10.140
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   524.331
_cell_formula_units_Z   8
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
  Ti  Ti0  1  0.286  0.832  0.145  1.0
  Ti  Ti1  1  0.286  0.668  0.355  1.0
  Ti  Ti2  1  0.786  0.645  0.168  1.0
  Ti  Ti3  1  0.786  0.855  0.332  1.0
  Ti  Ti4  1  0.714  0.168  0.855  1.0
  Ti  Ti5  1  0.714  0.332  0.645  1.0
  Ti  Ti6  1  0.214  0.355  0.832  1.0
  Ti  Ti7  1  0.214  0.145  0.668  1.0
  Ti  Ti8  1  0.963  0.278  0.107  1.0
  Ti  Ti9  1  0.963  0.222  0.393  1.0
  Ti  Ti10  1  0.463  0.607  0.722  1.0
  Ti  Ti11  1  0.463  0.893  0.778  1.0
  Ti  Ti12  1  0.037  0.722  0.893  1.0
  Ti  Ti13  1  0.037  0.778  0.607  1.0
  Ti  Ti14  1  0.537  0.393  0.278  1.0
  Ti  Ti15  1  0.537  0.107  0.222  1.0
  Ti  Ti16  1  0.245  0.432  0.534  1.0
  Ti  Ti17  1  0.245  0.068  0.966  1.0
  Ti  Ti18  1  0.745  0.034  0.568  1.0
  Ti  Ti19  1  0.745  0.466  0.932  1.0
  Ti  Ti20  1  0.755  0.568  0.466  1.0
  Ti  Ti21  1  0.755  0.932  0.034  1.0
  Ti  Ti22  1  0.255  0.966  0.432  1.0
  Ti  Ti23  1  0.255  0.534  0.068  1.0
  As  As24  1  0.461  0.291  0.044  1.0
  As  As25  1  0.461  0.209  0.456  1.0
  As  As26  1  0.961  0.544  0.709  1.0
  As  As27  1  0.961  0.956  0.791  1.0
  As  As28  1  0.539  0.709  0.956  1.0
  As  As29  1  0.539  0.791  0.544  1.0
  As  As30  1  0.039  0.456  0.291  1.0
  As  As31  1  0.039  0.044  0.209  1.0
[/CIF]
.
The structure described by Ti3As crystallizes in the tetragonal P4_2/n space group. There are three inequivalent Ti sites. In the first Ti site, Ti(1) is bonded in a distorted bent 150 degrees geometry to two equivalent As(1) atoms. In the second Ti site, Ti(2) is bonded in a 4-coordinate geometry to four equivalent As(1) atoms. In the third Ti site, Ti(3) is bonded in a 3-coordinate geometry to three equivalent As(1) atoms. As(1) is bonded in a 9-coordinate geometry to two equivalent Ti(1), three equivalent Ti(3), and four equivalent Ti(2) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_Ti3As
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.099
_cell_length_b   10.140
_cell_length_c   10.140
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   524.331
_cell_formula_units_Z   8
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
  Ti  Ti0  1  0.286  0.832  0.145  1.0
  Ti  Ti1  1  0.286  0.668  0.355  1.0
  Ti  Ti2  1  0.786  0.645  0.168  1.0
  Ti  Ti3  1  0.786  0.855  0.332  1.0
  Ti  Ti4  1  0.714  0.168  0.855  1.0
  Ti  Ti5  1  0.714  0.332  0.645  1.0
  Ti  Ti6  1  0.214  0.355  0.832  1.0
  Ti  Ti7  1  0.214  0.145  0.668  1.0
  Ti  Ti8  1  0.963  0.278  0.107  1.0
  Ti  Ti9  1  0.963  0.222  0.393  1.0
  Ti  Ti10  1  0.463  0.607  0.722  1.0
  Ti  Ti11  1  0.463  0.893  0.778  1.0
  Ti  Ti12  1  0.037  0.722  0.893  1.0
  Ti  Ti13  1  0.037  0.778  0.607  1.0
  Ti  Ti14  1  0.537  0.393  0.278  1.0
  Ti  Ti15  1  0.537  0.107  0.222  1.0
  Ti  Ti16  1  0.245  0.432  0.534  1.0
  Ti  Ti17  1  0.245  0.068  0.966  1.0
  Ti  Ti18  1  0.745  0.034  0.568  1.0
  Ti  Ti19  1  0.745  0.466  0.932  1.0
  Ti  Ti20  1  0.755  0.568  0.466  1.0
  Ti  Ti21  1  0.755  0.932  0.034  1.0
  Ti  Ti22  1  0.255  0.966  0.432  1.0
  Ti  Ti23  1  0.255  0.534  0.068  1.0
  As  As24  1  0.461  0.291  0.044  1.0
  As  As25  1  0.461  0.209  0.456  1.0
  As  As26  1  0.961  0.544  0.709  1.0
  As  As27  1  0.961  0.956  0.791  1.0
  As  As28  1  0.539  0.709  0.956  1.0
  As  As29  1  0.539  0.791  0.544  1.0
  As  As30  1  0.039  0.456  0.291  1.0
  As  As31  1  0.039  0.044  0.209  1.0
[/CIF]
.