The material structure described by Li7MnAs4 crystallizes in the triclinic P1 space group. There are fourteen inequivalent Li sites. In the first Li site, Li(1) is bonded to one As(2), one As(4), one As(5), and one As(8) atom to form distorted LiAs4 tetrahedra that share corners with two equivalent Li(10)As4 tetrahedra, corners with two equivalent Li(12)As4 tetrahedra, corners with two equivalent Li(13)As4 tetrahedra, corners with two equivalent Li(14)As4 tetrahedra, corners with two equivalent Mn(1)As4 tetrahedra, corners with two equivalent Mn(2)As4 tetrahedra,  an edgeedge with one Li(3)As4 tetrahedra,  an edgeedge with one Li(4)As4 tetrahedra,  an edgeedge with one Li(6)As4 tetrahedra,  an edgeedge with one Li(7)As4 tetrahedra, and edges with two equivalent Li(8)As4 tetrahedra. In the second Li site, Li(2) is bonded to one As(1), one As(3), one As(6), and one As(7) atom to form distorted LiAs4 tetrahedra that share corners with two equivalent Li(3)As4 tetrahedra, corners with two equivalent Li(4)As4 tetrahedra, corners with two equivalent Li(6)As4 tetrahedra, corners with two equivalent Li(7)As4 tetrahedra, corners with two equivalent Mn(1)As4 tetrahedra, corners with two equivalent Mn(2)As4 tetrahedra,  an edgeedge with one Li(10)As4 tetrahedra,  an edgeedge with one Li(12)As4 tetrahedra,  an edgeedge with one Li(13)As4 tetrahedra,  an edgeedge with one Li(14)As4 tetrahedra, and edges with two equivalent Li(9)As4 tetrahedra. In the third Li site, Li(3) is bonded to one As(1), one As(2), one As(3), and one As(4) atom to form LiAs4 tetrahedra that share corners with two equivalent Li(10)As4 tetrahedra, corners with two equivalent Li(12)As4 tetrahedra, corners with two equivalent Li(2)As4 tetrahedra, corners with two equivalent Li(6)As4 tetrahedra, corners with two equivalent Li(7)As4 tetrahedra, corners with two equivalent Li(8)As4 tetrahedra, corners with two equivalent Mn(2)As4 tetrahedra,  an edgeedge with one Li(1)As4 tetrahedra,  an edgeedge with one Li(9)As4 tetrahedra,  an edgeedge with one Mn(1)As4 tetrahedra, and edges with two equivalent Li(13)As4 tetrahedra. In the fourth Li site, Li(4) is bonded to one As(5), one As(6), one As(7), and one As(8) atom to form distorted LiAs4 tetrahedra that share corners with two equivalent Li(10)As4 tetrahedra, corners with two equivalent Li(12)As4 tetrahedra, corners with two equivalent Li(2)As4 tetrahedra, corners with two equivalent Li(6)As4 tetrahedra, corners with two equivalent Li(7)As4 tetrahedra, corners with two equivalent Li(8)As4 tetrahedra, corners with two equivalent Mn(2)As4 tetrahedra,  an edgeedge with one Li(1)As4 tetrahedra,  an edgeedge with one Li(9)As4 tetrahedra,  an edgeedge with one Mn(1)As4 tetrahedra, and edges with two equivalent Li(14)As4 tetrahedra. In the fifth Li site, Li(5) is bonded in a 4-coordinate geometry to one As(2), one As(3), one As(6), and one As(8) atom. In the sixth Li site, Li(6) is bonded to one As(3), one As(4), one As(7), and one As(8) atom to form distorted LiAs4 tetrahedra that share corners with two equivalent Li(13)As4 tetrahedra, corners with two equivalent Li(14)As4 tetrahedra, corners with two equivalent Li(2)As4 tetrahedra, corners with two equivalent Li(3)As4 tetrahedra, corners with two equivalent Li(4)As4 tetrahedra, corners with two equivalent Li(8)As4 tetrahedra, corners with two equivalent Mn(2)As4 tetrahedra,  an edgeedge with one Li(1)As4 tetrahedra,  an edgeedge with one Li(9)As4 tetrahedra,  an edgeedge with one Mn(1)As4 tetrahedra, and edges with two equivalent Li(10)As4 tetrahedra. In the seventh Li site, Li(7) is bonded to one As(1), one As(2), one As(5), and one As(6) atom to form distorted LiAs4 tetrahedra that share corners with two equivalent Li(13)As4 tetrahedra, corners with two equivalent Li(14)As4 tetrahedra, corners with two equivalent Li(2)As4 tetrahedra, corners with two equivalent Li(3)As4 tetrahedra, corners with two equivalent Li(4)As4 tetrahedra, corners with two equivalent Li(8)As4 tetrahedra, corners with two equivalent Mn(2)As4 tetrahedra,  an edgeedge with one Li(1)As4 tetrahedra,  an edgeedge with one Li(9)As4 tetrahedra,  an edgeedge with one Mn(1)As4 tetrahedra, and edges with two equivalent Li(12)As4 tetrahedra. In the eighth Li site, Li(8) is bonded to one As(2), one As(4), one As(5), and one As(8) atom to form distorted LiAs4 tetrahedra that share corners with two equivalent Li(3)As4 tetrahedra, corners with two equivalent Li(4)As4 tetrahedra, corners with two equivalent Li(6)As4 tetrahedra, corners with two equivalent Li(7)As4 tetrahedra, corners with two equivalent Mn(1)As4 tetrahedra, corners with two equivalent Mn(2)As4 tetrahedra,  an edgeedge with one Li(10)As4 tetrahedra,  an edgeedge with one Li(12)As4 tetrahedra,  an edgeedge with one Li(13)As4 tetrahedra,  an edgeedge with one Li(14)As4 tetrahedra, and edges with two equivalent Li(1)As4 tetrahedra. In the ninth Li site, Li(9) is bonded to one As(1), one As(3), one As(6), and one As(7) atom to form distorted LiAs4 tetrahedra that share corners with two equivalent Li(10)As4 tetrahedra, corners with two equivalent Li(12)As4 tetrahedra, corners with two equivalent Li(13)As4 tetrahedra, corners with two equivalent Li(14)As4 tetrahedra, corners with two equivalent Mn(1)As4 tetrahedra, corners with two equivalent Mn(2)As4 tetrahedra,  an edgeedge with one Li(3)As4 tetrahedra,  an edgeedge with one Li(4)As4 tetrahedra,  an edgeedge with one Li(6)As4 tetrahedra,  an edgeedge with one Li(7)As4 tetrahedra, and edges with two equivalent Li(2)As4 tetrahedra. In the tenth Li site, Li(10) is bonded to one As(3), one As(4), one As(7), and one As(8) atom to form distorted LiAs4 tetrahedra that share corners with two equivalent Li(1)As4 tetrahedra, corners with two equivalent Li(13)As4 tetrahedra, corners with two equivalent Li(14)As4 tetrahedra, corners with two equivalent Li(3)As4 tetrahedra, corners with two equivalent Li(4)As4 tetrahedra, corners with two equivalent Li(9)As4 tetrahedra, corners with two equivalent Mn(1)As4 tetrahedra,  an edgeedge with one Li(2)As4 tetrahedra,  an edgeedge with one Li(8)As4 tetrahedra,  an edgeedge with one Mn(2)As4 tetrahedra, and edges with two equivalent Li(6)As4 tetrahedra. In the eleventh Li site, Li(11) is bonded in a 4-coordinate geometry to one As(1), one As(4), one As(5), and one As(7) atom. In the twelfth Li site, Li(12) is bonded to one As(1), one As(2), one As(5), and one As(6) atom to form distorted LiAs4 tetrahedra that share corners with two equivalent Li(1)As4 tetrahedra, corners with two equivalent Li(13)As4 tetrahedra, corners with two equivalent Li(14)As4 tetrahedra, corners with two equivalent Li(3)As4 tetrahedra, corners with two equivalent Li(4)As4 tetrahedra, corners with two equivalent Li(9)As4 tetrahedra, corners with two equivalent Mn(1)As4 tetrahedra,  an edgeedge with one Li(2)As4 tetrahedra,  an edgeedge with one Li(8)As4 tetrahedra,  an edgeedge with one Mn(2)As4 tetrahedra, and edges with two equivalent Li(7)As4 tetrahedra. In the thirteenth Li site, Li(13) is bonded to one As(1), one As(2), one As(3), and one As(4) atom to form LiAs4 tetrahedra that share corners with two equivalent Li(1)As4 tetrahedra, corners with two equivalent Li(10)As4 tetrahedra, corners with two equivalent Li(12)As4 tetrahedra, corners with two equivalent Li(6)As4 tetrahedra, corners with two equivalent Li(7)As4 tetrahedra, corners with two equivalent Li(9)As4 tetrahedra, corners with two equivalent Mn(1)As4 tetrahedra,  an edgeedge with one Li(2)As4 tetrahedra,  an edgeedge with one Li(8)As4 tetrahedra,  an edgeedge with one Mn(2)As4 tetrahedra, and edges with two equivalent Li(3)As4 tetrahedra. In the fourteenth Li site, Li(14) is bonded to one As(5), one As(6), one As(7), and one As(8) atom to form distorted LiAs4 tetrahedra that share corners with two equivalent Li(1)As4 tetrahedra, corners with two equivalent Li(10)As4 tetrahedra, corners with two equivalent Li(12)As4 tetrahedra, corners with two equivalent Li(6)As4 tetrahedra, corners with two equivalent Li(7)As4 tetrahedra, corners with two equivalent Li(9)As4 tetrahedra, corners with two equivalent Mn(1)As4 tetrahedra,  an edgeedge with one Li(2)As4 tetrahedra,  an edgeedge with one Li(8)As4 tetrahedra,  an edgeedge with one Mn(2)As4 tetrahedra, and edges with two equivalent Li(4)As4 tetrahedra. There are two inequivalent Mn sites. In the first Mn site, Mn(1) is bonded to one As(1), one As(4), one As(5), and one As(7) atom to form distorted MnAs4 tetrahedra that share corners with two equivalent Li(1)As4 tetrahedra, corners with two equivalent Li(10)As4 tetrahedra, corners with two equivalent Li(12)As4 tetrahedra, corners with two equivalent Li(13)As4 tetrahedra, corners with two equivalent Li(14)As4 tetrahedra, corners with two equivalent Li(2)As4 tetrahedra, corners with two equivalent Li(8)As4 tetrahedra, corners with two equivalent Li(9)As4 tetrahedra,  an edgeedge with one Li(3)As4 tetrahedra,  an edgeedge with one Li(4)As4 tetrahedra,  an edgeedge with one Li(6)As4 tetrahedra, and  an edgeedge with one Li(7)As4 tetrahedra. In the second Mn site, Mn(2) is bonded to one As(2), one As(3), one As(6), and one As(8) atom to form distorted MnAs4 tetrahedra that share corners with two equivalent Li(1)As4 tetrahedra, corners with two equivalent Li(2)As4 tetrahedra, corners with two equivalent Li(3)As4 tetrahedra, corners with two equivalent Li(4)As4 tetrahedra, corners with two equivalent Li(6)As4 tetrahedra, corners with two equivalent Li(7)As4 tetrahedra, corners with two equivalent Li(8)As4 tetrahedra, corners with two equivalent Li(9)As4 tetrahedra,  an edgeedge with one Li(10)As4 tetrahedra,  an edgeedge with one Li(12)As4 tetrahedra,  an edgeedge with one Li(13)As4 tetrahedra, and  an edgeedge with one Li(14)As4 tetrahedra. There are eight inequivalent As sites. In the first As site, As(1) is bonded in a body-centered cubic geometry to one Li(11), one Li(12), one Li(13), one Li(2), one Li(3), one Li(7), one Li(9), and one Mn(1) atom. In the second As site, As(2) is bonded in a body-centered cubic geometry to one Li(1), one Li(12), one Li(13), one Li(3), one Li(5), one Li(7), one Li(8), and one Mn(2) atom. In the third As site, As(3) is bonded in a distorted body-centered cubic geometry to one Li(10), one Li(13), one Li(2), one Li(3), one Li(5), one Li(6), one Li(9), and one Mn(2) atom. In the fourth As site, As(4) is bonded in a body-centered cubic geometry to one Li(1), one Li(10), one Li(11), one Li(13), one Li(3), one Li(6), one Li(8), and one Mn(1) atom. In the fifth As site, As(5) is bonded in a body-centered cubic geometry to one Li(1), one Li(11), one Li(12), one Li(14), one Li(4), one Li(7), one Li(8), and one Mn(1) atom. In the sixth As site, As(6) is bonded in a body-centered cubic geometry to one Li(12), one Li(14), one Li(2), one Li(4), one Li(5), one Li(7), one Li(9), and one Mn(2) atom. In the seventh As site, As(7) is bonded in a body-centered cubic geometry to one Li(10), one Li(11), one Li(14), one Li(2), one Li(4), one Li(6), one Li(9), and one Mn(1) atom. In the eighth As site, As(8) is bonded in a body-centered cubic geometry to one Li(1), one Li(10), one Li(14), one Li(4), one Li(5), one Li(6), one Li(8), and one Mn(2) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_Li7MnAs4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.034
_cell_length_b   11.959
_cell_length_c   8.470
_cell_angle_alpha   44.939
_cell_angle_beta   89.704
_cell_angle_gamma   89.874
_symmetry_Int_Tables_number   1
_cell_volume   431.751
_cell_formula_units_Z   2
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
  Li  Li0  1  0.188  0.995  0.003  1.0
  Li  Li1  1  0.822  0.516  0.987  1.0
  Li  Li2  1  0.250  0.239  0.500  1.0
  Li  Li3  1  0.250  0.763  0.499  1.0
  Li  Li4  1  0.250  0.999  0.501  1.0
  Li  Li5  1  0.249  0.236  0.024  1.0
  Li  Li6  1  0.250  0.759  0.977  1.0
  Li  Li7  1  0.686  0.003  0.006  1.0
  Li  Li8  1  0.319  0.498  0.994  1.0
  Li  Li9  1  0.751  0.266  0.977  1.0
  Li  Li10  1  0.751  0.501  0.501  1.0
  Li  Li11  1  0.750  0.742  0.024  1.0
  Li  Li12  1  0.750  0.263  0.498  1.0
  Li  Li13  1  0.751  0.739  0.499  1.0
  Mn  Mn14  1  0.250  0.501  0.501  1.0
  Mn  Mn15  1  0.752  1.000  0.498  1.0
  As  As16  1  0.037  0.500  0.266  1.0
  As  As17  1  0.963  0.001  0.732  1.0
  As  As18  1  0.537  0.233  0.269  1.0
  As  As19  1  0.464  0.266  0.734  1.0
  As  As20  1  0.464  0.736  0.264  1.0
  As  As21  1  0.538  0.768  0.733  1.0
  As  As22  1  0.038  0.500  0.734  1.0
  As  As23  1  0.962  0.001  0.268  1.0
[/CIF]
.
The material structure described by Li7MnAs4 crystallizes in the triclinic P1 space group. There are fourteen inequivalent Li sites. In the first Li site, Li(1) is bonded to one As(2), one As(4), one As(5), and one As(8) atom to form distorted LiAs4 tetrahedra that share corners with two equivalent Li(10)As4 tetrahedra, corners with two equivalent Li(12)As4 tetrahedra, corners with two equivalent Li(13)As4 tetrahedra, corners with two equivalent Li(14)As4 tetrahedra, corners with two equivalent Mn(1)As4 tetrahedra, corners with two equivalent Mn(2)As4 tetrahedra,  an edgeedge with one Li(3)As4 tetrahedra,  an edgeedge with one Li(4)As4 tetrahedra,  an edgeedge with one Li(6)As4 tetrahedra,  an edgeedge with one Li(7)As4 tetrahedra, and edges with two equivalent Li(8)As4 tetrahedra. In the second Li site, Li(2) is bonded to one As(1), one As(3), one As(6), and one As(7) atom to form distorted LiAs4 tetrahedra that share corners with two equivalent Li(3)As4 tetrahedra, corners with two equivalent Li(4)As4 tetrahedra, corners with two equivalent Li(6)As4 tetrahedra, corners with two equivalent Li(7)As4 tetrahedra, corners with two equivalent Mn(1)As4 tetrahedra, corners with two equivalent Mn(2)As4 tetrahedra,  an edgeedge with one Li(10)As4 tetrahedra,  an edgeedge with one Li(12)As4 tetrahedra,  an edgeedge with one Li(13)As4 tetrahedra,  an edgeedge with one Li(14)As4 tetrahedra, and edges with two equivalent Li(9)As4 tetrahedra. In the third Li site, Li(3) is bonded to one As(1), one As(2), one As(3), and one As(4) atom to form LiAs4 tetrahedra that share corners with two equivalent Li(10)As4 tetrahedra, corners with two equivalent Li(12)As4 tetrahedra, corners with two equivalent Li(2)As4 tetrahedra, corners with two equivalent Li(6)As4 tetrahedra, corners with two equivalent Li(7)As4 tetrahedra, corners with two equivalent Li(8)As4 tetrahedra, corners with two equivalent Mn(2)As4 tetrahedra,  an edgeedge with one Li(1)As4 tetrahedra,  an edgeedge with one Li(9)As4 tetrahedra,  an edgeedge with one Mn(1)As4 tetrahedra, and edges with two equivalent Li(13)As4 tetrahedra. In the fourth Li site, Li(4) is bonded to one As(5), one As(6), one As(7), and one As(8) atom to form distorted LiAs4 tetrahedra that share corners with two equivalent Li(10)As4 tetrahedra, corners with two equivalent Li(12)As4 tetrahedra, corners with two equivalent Li(2)As4 tetrahedra, corners with two equivalent Li(6)As4 tetrahedra, corners with two equivalent Li(7)As4 tetrahedra, corners with two equivalent Li(8)As4 tetrahedra, corners with two equivalent Mn(2)As4 tetrahedra,  an edgeedge with one Li(1)As4 tetrahedra,  an edgeedge with one Li(9)As4 tetrahedra,  an edgeedge with one Mn(1)As4 tetrahedra, and edges with two equivalent Li(14)As4 tetrahedra. In the fifth Li site, Li(5) is bonded in a 4-coordinate geometry to one As(2), one As(3), one As(6), and one As(8) atom. In the sixth Li site, Li(6) is bonded to one As(3), one As(4), one As(7), and one As(8) atom to form distorted LiAs4 tetrahedra that share corners with two equivalent Li(13)As4 tetrahedra, corners with two equivalent Li(14)As4 tetrahedra, corners with two equivalent Li(2)As4 tetrahedra, corners with two equivalent Li(3)As4 tetrahedra, corners with two equivalent Li(4)As4 tetrahedra, corners with two equivalent Li(8)As4 tetrahedra, corners with two equivalent Mn(2)As4 tetrahedra,  an edgeedge with one Li(1)As4 tetrahedra,  an edgeedge with one Li(9)As4 tetrahedra,  an edgeedge with one Mn(1)As4 tetrahedra, and edges with two equivalent Li(10)As4 tetrahedra. In the seventh Li site, Li(7) is bonded to one As(1), one As(2), one As(5), and one As(6) atom to form distorted LiAs4 tetrahedra that share corners with two equivalent Li(13)As4 tetrahedra, corners with two equivalent Li(14)As4 tetrahedra, corners with two equivalent Li(2)As4 tetrahedra, corners with two equivalent Li(3)As4 tetrahedra, corners with two equivalent Li(4)As4 tetrahedra, corners with two equivalent Li(8)As4 tetrahedra, corners with two equivalent Mn(2)As4 tetrahedra,  an edgeedge with one Li(1)As4 tetrahedra,  an edgeedge with one Li(9)As4 tetrahedra,  an edgeedge with one Mn(1)As4 tetrahedra, and edges with two equivalent Li(12)As4 tetrahedra. In the eighth Li site, Li(8) is bonded to one As(2), one As(4), one As(5), and one As(8) atom to form distorted LiAs4 tetrahedra that share corners with two equivalent Li(3)As4 tetrahedra, corners with two equivalent Li(4)As4 tetrahedra, corners with two equivalent Li(6)As4 tetrahedra, corners with two equivalent Li(7)As4 tetrahedra, corners with two equivalent Mn(1)As4 tetrahedra, corners with two equivalent Mn(2)As4 tetrahedra,  an edgeedge with one Li(10)As4 tetrahedra,  an edgeedge with one Li(12)As4 tetrahedra,  an edgeedge with one Li(13)As4 tetrahedra,  an edgeedge with one Li(14)As4 tetrahedra, and edges with two equivalent Li(1)As4 tetrahedra. In the ninth Li site, Li(9) is bonded to one As(1), one As(3), one As(6), and one As(7) atom to form distorted LiAs4 tetrahedra that share corners with two equivalent Li(10)As4 tetrahedra, corners with two equivalent Li(12)As4 tetrahedra, corners with two equivalent Li(13)As4 tetrahedra, corners with two equivalent Li(14)As4 tetrahedra, corners with two equivalent Mn(1)As4 tetrahedra, corners with two equivalent Mn(2)As4 tetrahedra,  an edgeedge with one Li(3)As4 tetrahedra,  an edgeedge with one Li(4)As4 tetrahedra,  an edgeedge with one Li(6)As4 tetrahedra,  an edgeedge with one Li(7)As4 tetrahedra, and edges with two equivalent Li(2)As4 tetrahedra. In the tenth Li site, Li(10) is bonded to one As(3), one As(4), one As(7), and one As(8) atom to form distorted LiAs4 tetrahedra that share corners with two equivalent Li(1)As4 tetrahedra, corners with two equivalent Li(13)As4 tetrahedra, corners with two equivalent Li(14)As4 tetrahedra, corners with two equivalent Li(3)As4 tetrahedra, corners with two equivalent Li(4)As4 tetrahedra, corners with two equivalent Li(9)As4 tetrahedra, corners with two equivalent Mn(1)As4 tetrahedra,  an edgeedge with one Li(2)As4 tetrahedra,  an edgeedge with one Li(8)As4 tetrahedra,  an edgeedge with one Mn(2)As4 tetrahedra, and edges with two equivalent Li(6)As4 tetrahedra. In the eleventh Li site, Li(11) is bonded in a 4-coordinate geometry to one As(1), one As(4), one As(5), and one As(7) atom. In the twelfth Li site, Li(12) is bonded to one As(1), one As(2), one As(5), and one As(6) atom to form distorted LiAs4 tetrahedra that share corners with two equivalent Li(1)As4 tetrahedra, corners with two equivalent Li(13)As4 tetrahedra, corners with two equivalent Li(14)As4 tetrahedra, corners with two equivalent Li(3)As4 tetrahedra, corners with two equivalent Li(4)As4 tetrahedra, corners with two equivalent Li(9)As4 tetrahedra, corners with two equivalent Mn(1)As4 tetrahedra,  an edgeedge with one Li(2)As4 tetrahedra,  an edgeedge with one Li(8)As4 tetrahedra,  an edgeedge with one Mn(2)As4 tetrahedra, and edges with two equivalent Li(7)As4 tetrahedra. In the thirteenth Li site, Li(13) is bonded to one As(1), one As(2), one As(3), and one As(4) atom to form LiAs4 tetrahedra that share corners with two equivalent Li(1)As4 tetrahedra, corners with two equivalent Li(10)As4 tetrahedra, corners with two equivalent Li(12)As4 tetrahedra, corners with two equivalent Li(6)As4 tetrahedra, corners with two equivalent Li(7)As4 tetrahedra, corners with two equivalent Li(9)As4 tetrahedra, corners with two equivalent Mn(1)As4 tetrahedra,  an edgeedge with one Li(2)As4 tetrahedra,  an edgeedge with one Li(8)As4 tetrahedra,  an edgeedge with one Mn(2)As4 tetrahedra, and edges with two equivalent Li(3)As4 tetrahedra. In the fourteenth Li site, Li(14) is bonded to one As(5), one As(6), one As(7), and one As(8) atom to form distorted LiAs4 tetrahedra that share corners with two equivalent Li(1)As4 tetrahedra, corners with two equivalent Li(10)As4 tetrahedra, corners with two equivalent Li(12)As4 tetrahedra, corners with two equivalent Li(6)As4 tetrahedra, corners with two equivalent Li(7)As4 tetrahedra, corners with two equivalent Li(9)As4 tetrahedra, corners with two equivalent Mn(1)As4 tetrahedra,  an edgeedge with one Li(2)As4 tetrahedra,  an edgeedge with one Li(8)As4 tetrahedra,  an edgeedge with one Mn(2)As4 tetrahedra, and edges with two equivalent Li(4)As4 tetrahedra. There are two inequivalent Mn sites. In the first Mn site, Mn(1) is bonded to one As(1), one As(4), one As(5), and one As(7) atom to form distorted MnAs4 tetrahedra that share corners with two equivalent Li(1)As4 tetrahedra, corners with two equivalent Li(10)As4 tetrahedra, corners with two equivalent Li(12)As4 tetrahedra, corners with two equivalent Li(13)As4 tetrahedra, corners with two equivalent Li(14)As4 tetrahedra, corners with two equivalent Li(2)As4 tetrahedra, corners with two equivalent Li(8)As4 tetrahedra, corners with two equivalent Li(9)As4 tetrahedra,  an edgeedge with one Li(3)As4 tetrahedra,  an edgeedge with one Li(4)As4 tetrahedra,  an edgeedge with one Li(6)As4 tetrahedra, and  an edgeedge with one Li(7)As4 tetrahedra. In the second Mn site, Mn(2) is bonded to one As(2), one As(3), one As(6), and one As(8) atom to form distorted MnAs4 tetrahedra that share corners with two equivalent Li(1)As4 tetrahedra, corners with two equivalent Li(2)As4 tetrahedra, corners with two equivalent Li(3)As4 tetrahedra, corners with two equivalent Li(4)As4 tetrahedra, corners with two equivalent Li(6)As4 tetrahedra, corners with two equivalent Li(7)As4 tetrahedra, corners with two equivalent Li(8)As4 tetrahedra, corners with two equivalent Li(9)As4 tetrahedra,  an edgeedge with one Li(10)As4 tetrahedra,  an edgeedge with one Li(12)As4 tetrahedra,  an edgeedge with one Li(13)As4 tetrahedra, and  an edgeedge with one Li(14)As4 tetrahedra. There are eight inequivalent As sites. In the first As site, As(1) is bonded in a body-centered cubic geometry to one Li(11), one Li(12), one Li(13), one Li(2), one Li(3), one Li(7), one Li(9), and one Mn(1) atom. In the second As site, As(2) is bonded in a body-centered cubic geometry to one Li(1), one Li(12), one Li(13), one Li(3), one Li(5), one Li(7), one Li(8), and one Mn(2) atom. In the third As site, As(3) is bonded in a distorted body-centered cubic geometry to one Li(10), one Li(13), one Li(2), one Li(3), one Li(5), one Li(6), one Li(9), and one Mn(2) atom. In the fourth As site, As(4) is bonded in a body-centered cubic geometry to one Li(1), one Li(10), one Li(11), one Li(13), one Li(3), one Li(6), one Li(8), and one Mn(1) atom. In the fifth As site, As(5) is bonded in a body-centered cubic geometry to one Li(1), one Li(11), one Li(12), one Li(14), one Li(4), one Li(7), one Li(8), and one Mn(1) atom. In the sixth As site, As(6) is bonded in a body-centered cubic geometry to one Li(12), one Li(14), one Li(2), one Li(4), one Li(5), one Li(7), one Li(9), and one Mn(2) atom. In the seventh As site, As(7) is bonded in a body-centered cubic geometry to one Li(10), one Li(11), one Li(14), one Li(2), one Li(4), one Li(6), one Li(9), and one Mn(1) atom. In the eighth As site, As(8) is bonded in a body-centered cubic geometry to one Li(1), one Li(10), one Li(14), one Li(4), one Li(5), one Li(6), one Li(8), and one Mn(2) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_Li7MnAs4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.034
_cell_length_b   11.959
_cell_length_c   8.470
_cell_angle_alpha   44.939
_cell_angle_beta   89.704
_cell_angle_gamma   89.874
_symmetry_Int_Tables_number   1
_cell_volume   431.751
_cell_formula_units_Z   2
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
  Li  Li0  1  0.188  0.995  0.003  1.0
  Li  Li1  1  0.822  0.516  0.987  1.0
  Li  Li2  1  0.250  0.239  0.500  1.0
  Li  Li3  1  0.250  0.763  0.499  1.0
  Li  Li4  1  0.250  0.999  0.501  1.0
  Li  Li5  1  0.249  0.236  0.024  1.0
  Li  Li6  1  0.250  0.759  0.977  1.0
  Li  Li7  1  0.686  0.003  0.006  1.0
  Li  Li8  1  0.319  0.498  0.994  1.0
  Li  Li9  1  0.751  0.266  0.977  1.0
  Li  Li10  1  0.751  0.501  0.501  1.0
  Li  Li11  1  0.750  0.742  0.024  1.0
  Li  Li12  1  0.750  0.263  0.498  1.0
  Li  Li13  1  0.751  0.739  0.499  1.0
  Mn  Mn14  1  0.250  0.501  0.501  1.0
  Mn  Mn15  1  0.752  1.000  0.498  1.0
  As  As16  1  0.037  0.500  0.266  1.0
  As  As17  1  0.963  0.001  0.732  1.0
  As  As18  1  0.537  0.233  0.269  1.0
  As  As19  1  0.464  0.266  0.734  1.0
  As  As20  1  0.464  0.736  0.264  1.0
  As  As21  1  0.538  0.768  0.733  1.0
  As  As22  1  0.038  0.500  0.734  1.0
  As  As23  1  0.962  0.001  0.268  1.0
[/CIF]
.