The structure described by CaMn3V4O12 crystallizes in the triclinic P1 space group. There are two inequivalent Ca sites. In the first Ca site, Ca(1) is bonded to one O(10), one O(11), one O(14), one O(15), one O(18), one O(19), one O(2), one O(22), one O(23), one O(3), one O(6), and one O(7) atom to form CaO12 cuboctahedra that share  a faceface with one V(1)O6 octahedra,  a faceface with one V(2)O6 octahedra,  a faceface with one V(3)O6 octahedra,  a faceface with one V(4)O6 octahedra,  a faceface with one V(5)O6 octahedra,  a faceface with one V(6)O6 octahedra,  a faceface with one V(7)O6 octahedra, and  a faceface with one V(8)O6 octahedra. In the second Ca site, Ca(2) is bonded to one O(1), one O(12), one O(13), one O(16), one O(17), one O(20), one O(21), one O(24), one O(4), one O(5), one O(8), and one O(9) atom to form CaO12 cuboctahedra that share  a faceface with one V(1)O6 octahedra,  a faceface with one V(2)O6 octahedra,  a faceface with one V(3)O6 octahedra,  a faceface with one V(4)O6 octahedra,  a faceface with one V(5)O6 octahedra,  a faceface with one V(6)O6 octahedra,  a faceface with one V(7)O6 octahedra, and  a faceface with one V(8)O6 octahedra. There are eight inequivalent V sites. In the first V site, V(1) is bonded to one O(1), one O(12), one O(14), one O(19), one O(21), and one O(7) atom to form VO6 octahedra that share corners with two equivalent V(4)O6 octahedra, corners with two equivalent V(6)O6 octahedra, corners with two equivalent V(7)O6 octahedra,  a faceface with one Ca(1)O12 cuboctahedra, and  a faceface with one Ca(2)O12 cuboctahedra. The corner-sharing octahedral tilt angles range from 32-35°. In the second V site, V(2) is bonded to one O(11), one O(13), one O(2), one O(20), one O(22), and one O(8) atom to form VO6 octahedra that share corners with two equivalent V(3)O6 octahedra, corners with two equivalent V(5)O6 octahedra, corners with two equivalent V(8)O6 octahedra,  a faceface with one Ca(1)O12 cuboctahedra, and  a faceface with one Ca(2)O12 cuboctahedra. The corner-sharing octahedral tilt angles range from 32-34°. In the third V site, V(3) is bonded to one O(11), one O(13), one O(17), one O(23), one O(4), and one O(6) atom to form VO6 octahedra that share corners with two equivalent V(2)O6 octahedra, corners with two equivalent V(6)O6 octahedra, corners with two equivalent V(7)O6 octahedra,  a faceface with one Ca(1)O12 cuboctahedra, and  a faceface with one Ca(2)O12 cuboctahedra. The corner-sharing octahedral tilt angles range from 30-35°. In the fourth V site, V(4) is bonded to one O(12), one O(14), one O(18), one O(24), one O(3), and one O(5) atom to form VO6 octahedra that share corners with two equivalent V(1)O6 octahedra, corners with two equivalent V(5)O6 octahedra, corners with two equivalent V(8)O6 octahedra,  a faceface with one Ca(1)O12 cuboctahedra, and  a faceface with one Ca(2)O12 cuboctahedra. The corner-sharing octahedral tilt angles range from 30-34°. In the fifth V site, V(5) is bonded to one O(15), one O(20), one O(22), one O(3), one O(5), and one O(9) atom to form VO6 octahedra that share corners with two equivalent V(2)O6 octahedra, corners with two equivalent V(4)O6 octahedra, corners with two equivalent V(7)O6 octahedra,  a faceface with one Ca(1)O12 cuboctahedra, and  a faceface with one Ca(2)O12 cuboctahedra. The corner-sharing octahedral tilt angles range from 34-35°. In the sixth V site, V(6) is bonded to one O(10), one O(16), one O(19), one O(21), one O(4), and one O(6) atom to form VO6 octahedra that share corners with two equivalent V(1)O6 octahedra, corners with two equivalent V(3)O6 octahedra, corners with two equivalent V(8)O6 octahedra,  a faceface with one Ca(1)O12 cuboctahedra, and  a faceface with one Ca(2)O12 cuboctahedra. The corner-sharing octahedral tilt angles range from 33-35°. In the seventh V site, V(7) is bonded to one O(1), one O(15), one O(17), one O(23), one O(7), and one O(9) atom to form VO6 octahedra that share corners with two equivalent V(1)O6 octahedra, corners with two equivalent V(3)O6 octahedra, corners with two equivalent V(5)O6 octahedra,  a faceface with one Ca(1)O12 cuboctahedra, and  a faceface with one Ca(2)O12 cuboctahedra. The corner-sharing octahedral tilt angles range from 30-35°. In the eighth V site, V(8) is bonded to one O(10), one O(16), one O(18), one O(2), one O(24), and one O(8) atom to form VO6 octahedra that share corners with two equivalent V(2)O6 octahedra, corners with two equivalent V(4)O6 octahedra, corners with two equivalent V(6)O6 octahedra,  a faceface with one Ca(1)O12 cuboctahedra, and  a faceface with one Ca(2)O12 cuboctahedra. The corner-sharing octahedral tilt angles range from 30-34°. There are six inequivalent Mn sites. In the first Mn site, Mn(1) is bonded in a distorted square co-planar geometry to one O(12), one O(13), one O(16), one O(23), and one O(9) atom. In the second Mn site, Mn(2) is bonded in a distorted square co-planar geometry to one O(18), one O(19), one O(22), and one O(23) atom. In the third Mn site, Mn(3) is bonded in a distorted square co-planar geometry to one O(17), one O(20), one O(21), and one O(24) atom. In the fourth Mn site, Mn(4) is bonded in a square co-planar geometry to one O(2), one O(3), one O(6), and one O(7) atom. In the fifth Mn site, Mn(5) is bonded in a square co-planar geometry to one O(1), one O(4), one O(5), and one O(8) atom. In the sixth Mn site, Mn(6) is bonded in a distorted square co-planar geometry to one O(10), one O(11), one O(14), and one O(15) atom. There are twenty-four inequivalent O sites. In the first O site, O(1) is bonded in a 3-coordinate geometry to one Ca(2), one V(1), one V(7), and one Mn(5) atom. In the second O site, O(2) is bonded in a 3-coordinate geometry to one Ca(1), one V(2), one V(8), and one Mn(4) atom. In the third O site, O(3) is bonded in a 3-coordinate geometry to one Ca(1), one V(4), one V(5), and one Mn(4) atom. In the fourth O site, O(4) is bonded in a 3-coordinate geometry to one Ca(2), one V(3), one V(6), and one Mn(5) atom. In the fifth O site, O(5) is bonded in a 3-coordinate geometry to one Ca(2), one V(4), one V(5), and one Mn(5) atom. In the sixth O site, O(6) is bonded in a 3-coordinate geometry to one Ca(1), one V(3), one V(6), and one Mn(4) atom. In the seventh O site, O(7) is bonded in a 3-coordinate geometry to one Ca(1), one V(1), one V(7), and one Mn(4) atom. In the eighth O site, O(8) is bonded in a 3-coordinate geometry to one Ca(2), one V(2), one V(8), and one Mn(5) atom. In the ninth O site, O(9) is bonded in a 3-coordinate geometry to one Ca(2), one V(5), one V(7), and one Mn(1) atom. In the tenth O site, O(10) is bonded in a 3-coordinate geometry to one Ca(1), one V(6), one V(8), and one Mn(6) atom. In the eleventh O site, O(11) is bonded in a 3-coordinate geometry to one Ca(1), one V(2), one V(3), and one Mn(6) atom. In the twelfth O site, O(12) is bonded in a 3-coordinate geometry to one Ca(2), one V(1), one V(4), and one Mn(1) atom. In the thirteenth O site, O(13) is bonded in a 3-coordinate geometry to one Ca(2), one V(2), one V(3), and one Mn(1) atom. In the fourteenth O site, O(14) is bonded in a 3-coordinate geometry to one Ca(1), one V(1), one V(4), and one Mn(6) atom. In the fifteenth O site, O(15) is bonded in a 3-coordinate geometry to one Ca(1), one V(5), one V(7), and one Mn(6) atom. In the sixteenth O site, O(16) is bonded in a 3-coordinate geometry to one Ca(2), one V(6), one V(8), and one Mn(1) atom. In the seventeenth O site, O(17) is bonded in a 3-coordinate geometry to one Ca(2), one V(3), one V(7), and one Mn(3) atom. In the eighteenth O site, O(18) is bonded in a 3-coordinate geometry to one Ca(1), one V(4), one V(8), and one Mn(2) atom. In the nineteenth O site, O(19) is bonded in a 3-coordinate geometry to one Ca(1), one V(1), one V(6), and one Mn(2) atom. In the twentieth O site, O(20) is bonded in a 3-coordinate geometry to one Ca(2), one V(2), one V(5), and one Mn(3) atom. In the twenty-first O site, O(21) is bonded in a 3-coordinate geometry to one Ca(2), one V(1), one V(6), and one Mn(3) atom. In the twenty-second O site, O(22) is bonded in a 3-coordinate geometry to one Ca(1), one V(2), one V(5), and one Mn(2) atom. In the twenty-third O site, O(23) is bonded in a 5-coordinate geometry to one Ca(1), one V(3), one V(7), one Mn(1), and one Mn(2) atom. In the twenty-fourth O site, O(24) is bonded in a 3-coordinate geometry to one Ca(2), one V(4), one V(8), and one Mn(3) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_CaMn3V4O12
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.530
_cell_length_b   6.536
_cell_length_c   6.536
_cell_angle_alpha   70.186
_cell_angle_beta   70.647
_cell_angle_gamma   109.397
_symmetry_Int_Tables_number   1
_cell_volume   214.355
_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
  Ca  Ca0  1  0.000  0.000  1.000  1.0
  Mn  Mn1  1  0.500  0.503  0.997  1.0
  Mn  Mn2  1  0.499  0.999  0.500  1.0
  Mn  Mn3  1  0.999  0.500  0.500  1.0
  O  O4  1  0.797  0.102  0.713  1.0
  O  O5  1  0.190  0.487  0.702  1.0
  O  O6  1  0.810  0.514  0.298  1.0
  O  O7  1  0.203  0.898  0.288  1.0
  O  O8  1  0.518  0.702  0.192  1.0
  O  O9  1  0.900  0.714  0.799  1.0
  O  O10  1  0.100  0.285  0.202  1.0
  O  O11  1  0.482  0.297  0.808  1.0
  O  O12  1  0.714  0.206  0.096  1.0
  O  O13  1  0.703  0.810  0.489  1.0
  O  O14  1  0.297  0.189  0.514  1.0
  O  O15  1  0.287  0.793  0.904  1.0
  V  V16  1  0.000  0.001  0.500  1.0
  V  V17  1  0.999  0.500  0.000  1.0
  V  V18  1  0.500  0.500  0.500  1.0
  V  V19  1  0.500  0.000  0.000  1.0
[/CIF]
.
The structure described by CaMn3V4O12 crystallizes in the triclinic P1 space group. There are two inequivalent Ca sites. In the first Ca site, Ca(1) is bonded to one O(10), one O(11), one O(14), one O(15), one O(18), one O(19), one O(2), one O(22), one O(23), one O(3), one O(6), and one O(7) atom to form CaO12 cuboctahedra that share  a faceface with one V(1)O6 octahedra,  a faceface with one V(2)O6 octahedra,  a faceface with one V(3)O6 octahedra,  a faceface with one V(4)O6 octahedra,  a faceface with one V(5)O6 octahedra,  a faceface with one V(6)O6 octahedra,  a faceface with one V(7)O6 octahedra, and  a faceface with one V(8)O6 octahedra. In the second Ca site, Ca(2) is bonded to one O(1), one O(12), one O(13), one O(16), one O(17), one O(20), one O(21), one O(24), one O(4), one O(5), one O(8), and one O(9) atom to form CaO12 cuboctahedra that share  a faceface with one V(1)O6 octahedra,  a faceface with one V(2)O6 octahedra,  a faceface with one V(3)O6 octahedra,  a faceface with one V(4)O6 octahedra,  a faceface with one V(5)O6 octahedra,  a faceface with one V(6)O6 octahedra,  a faceface with one V(7)O6 octahedra, and  a faceface with one V(8)O6 octahedra. There are eight inequivalent V sites. In the first V site, V(1) is bonded to one O(1), one O(12), one O(14), one O(19), one O(21), and one O(7) atom to form VO6 octahedra that share corners with two equivalent V(4)O6 octahedra, corners with two equivalent V(6)O6 octahedra, corners with two equivalent V(7)O6 octahedra,  a faceface with one Ca(1)O12 cuboctahedra, and  a faceface with one Ca(2)O12 cuboctahedra. The corner-sharing octahedral tilt angles range from 32-35°. In the second V site, V(2) is bonded to one O(11), one O(13), one O(2), one O(20), one O(22), and one O(8) atom to form VO6 octahedra that share corners with two equivalent V(3)O6 octahedra, corners with two equivalent V(5)O6 octahedra, corners with two equivalent V(8)O6 octahedra,  a faceface with one Ca(1)O12 cuboctahedra, and  a faceface with one Ca(2)O12 cuboctahedra. The corner-sharing octahedral tilt angles range from 32-34°. In the third V site, V(3) is bonded to one O(11), one O(13), one O(17), one O(23), one O(4), and one O(6) atom to form VO6 octahedra that share corners with two equivalent V(2)O6 octahedra, corners with two equivalent V(6)O6 octahedra, corners with two equivalent V(7)O6 octahedra,  a faceface with one Ca(1)O12 cuboctahedra, and  a faceface with one Ca(2)O12 cuboctahedra. The corner-sharing octahedral tilt angles range from 30-35°. In the fourth V site, V(4) is bonded to one O(12), one O(14), one O(18), one O(24), one O(3), and one O(5) atom to form VO6 octahedra that share corners with two equivalent V(1)O6 octahedra, corners with two equivalent V(5)O6 octahedra, corners with two equivalent V(8)O6 octahedra,  a faceface with one Ca(1)O12 cuboctahedra, and  a faceface with one Ca(2)O12 cuboctahedra. The corner-sharing octahedral tilt angles range from 30-34°. In the fifth V site, V(5) is bonded to one O(15), one O(20), one O(22), one O(3), one O(5), and one O(9) atom to form VO6 octahedra that share corners with two equivalent V(2)O6 octahedra, corners with two equivalent V(4)O6 octahedra, corners with two equivalent V(7)O6 octahedra,  a faceface with one Ca(1)O12 cuboctahedra, and  a faceface with one Ca(2)O12 cuboctahedra. The corner-sharing octahedral tilt angles range from 34-35°. In the sixth V site, V(6) is bonded to one O(10), one O(16), one O(19), one O(21), one O(4), and one O(6) atom to form VO6 octahedra that share corners with two equivalent V(1)O6 octahedra, corners with two equivalent V(3)O6 octahedra, corners with two equivalent V(8)O6 octahedra,  a faceface with one Ca(1)O12 cuboctahedra, and  a faceface with one Ca(2)O12 cuboctahedra. The corner-sharing octahedral tilt angles range from 33-35°. In the seventh V site, V(7) is bonded to one O(1), one O(15), one O(17), one O(23), one O(7), and one O(9) atom to form VO6 octahedra that share corners with two equivalent V(1)O6 octahedra, corners with two equivalent V(3)O6 octahedra, corners with two equivalent V(5)O6 octahedra,  a faceface with one Ca(1)O12 cuboctahedra, and  a faceface with one Ca(2)O12 cuboctahedra. The corner-sharing octahedral tilt angles range from 30-35°. In the eighth V site, V(8) is bonded to one O(10), one O(16), one O(18), one O(2), one O(24), and one O(8) atom to form VO6 octahedra that share corners with two equivalent V(2)O6 octahedra, corners with two equivalent V(4)O6 octahedra, corners with two equivalent V(6)O6 octahedra,  a faceface with one Ca(1)O12 cuboctahedra, and  a faceface with one Ca(2)O12 cuboctahedra. The corner-sharing octahedral tilt angles range from 30-34°. There are six inequivalent Mn sites. In the first Mn site, Mn(1) is bonded in a distorted square co-planar geometry to one O(12), one O(13), one O(16), one O(23), and one O(9) atom. In the second Mn site, Mn(2) is bonded in a distorted square co-planar geometry to one O(18), one O(19), one O(22), and one O(23) atom. In the third Mn site, Mn(3) is bonded in a distorted square co-planar geometry to one O(17), one O(20), one O(21), and one O(24) atom. In the fourth Mn site, Mn(4) is bonded in a square co-planar geometry to one O(2), one O(3), one O(6), and one O(7) atom. In the fifth Mn site, Mn(5) is bonded in a square co-planar geometry to one O(1), one O(4), one O(5), and one O(8) atom. In the sixth Mn site, Mn(6) is bonded in a distorted square co-planar geometry to one O(10), one O(11), one O(14), and one O(15) atom. There are twenty-four inequivalent O sites. In the first O site, O(1) is bonded in a 3-coordinate geometry to one Ca(2), one V(1), one V(7), and one Mn(5) atom. In the second O site, O(2) is bonded in a 3-coordinate geometry to one Ca(1), one V(2), one V(8), and one Mn(4) atom. In the third O site, O(3) is bonded in a 3-coordinate geometry to one Ca(1), one V(4), one V(5), and one Mn(4) atom. In the fourth O site, O(4) is bonded in a 3-coordinate geometry to one Ca(2), one V(3), one V(6), and one Mn(5) atom. In the fifth O site, O(5) is bonded in a 3-coordinate geometry to one Ca(2), one V(4), one V(5), and one Mn(5) atom. In the sixth O site, O(6) is bonded in a 3-coordinate geometry to one Ca(1), one V(3), one V(6), and one Mn(4) atom. In the seventh O site, O(7) is bonded in a 3-coordinate geometry to one Ca(1), one V(1), one V(7), and one Mn(4) atom. In the eighth O site, O(8) is bonded in a 3-coordinate geometry to one Ca(2), one V(2), one V(8), and one Mn(5) atom. In the ninth O site, O(9) is bonded in a 3-coordinate geometry to one Ca(2), one V(5), one V(7), and one Mn(1) atom. In the tenth O site, O(10) is bonded in a 3-coordinate geometry to one Ca(1), one V(6), one V(8), and one Mn(6) atom. In the eleventh O site, O(11) is bonded in a 3-coordinate geometry to one Ca(1), one V(2), one V(3), and one Mn(6) atom. In the twelfth O site, O(12) is bonded in a 3-coordinate geometry to one Ca(2), one V(1), one V(4), and one Mn(1) atom. In the thirteenth O site, O(13) is bonded in a 3-coordinate geometry to one Ca(2), one V(2), one V(3), and one Mn(1) atom. In the fourteenth O site, O(14) is bonded in a 3-coordinate geometry to one Ca(1), one V(1), one V(4), and one Mn(6) atom. In the fifteenth O site, O(15) is bonded in a 3-coordinate geometry to one Ca(1), one V(5), one V(7), and one Mn(6) atom. In the sixteenth O site, O(16) is bonded in a 3-coordinate geometry to one Ca(2), one V(6), one V(8), and one Mn(1) atom. In the seventeenth O site, O(17) is bonded in a 3-coordinate geometry to one Ca(2), one V(3), one V(7), and one Mn(3) atom. In the eighteenth O site, O(18) is bonded in a 3-coordinate geometry to one Ca(1), one V(4), one V(8), and one Mn(2) atom. In the nineteenth O site, O(19) is bonded in a 3-coordinate geometry to one Ca(1), one V(1), one V(6), and one Mn(2) atom. In the twentieth O site, O(20) is bonded in a 3-coordinate geometry to one Ca(2), one V(2), one V(5), and one Mn(3) atom. In the twenty-first O site, O(21) is bonded in a 3-coordinate geometry to one Ca(2), one V(1), one V(6), and one Mn(3) atom. In the twenty-second O site, O(22) is bonded in a 3-coordinate geometry to one Ca(1), one V(2), one V(5), and one Mn(2) atom. In the twenty-third O site, O(23) is bonded in a 5-coordinate geometry to one Ca(1), one V(3), one V(7), one Mn(1), and one Mn(2) atom. In the twenty-fourth O site, O(24) is bonded in a 3-coordinate geometry to one Ca(2), one V(4), one V(8), and one Mn(3) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_CaMn3V4O12
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.530
_cell_length_b   6.536
_cell_length_c   6.536
_cell_angle_alpha   70.186
_cell_angle_beta   70.647
_cell_angle_gamma   109.397
_symmetry_Int_Tables_number   1
_cell_volume   214.355
_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
  Ca  Ca0  1  0.000  0.000  1.000  1.0
  Mn  Mn1  1  0.500  0.503  0.997  1.0
  Mn  Mn2  1  0.499  0.999  0.500  1.0
  Mn  Mn3  1  0.999  0.500  0.500  1.0
  O  O4  1  0.797  0.102  0.713  1.0
  O  O5  1  0.190  0.487  0.702  1.0
  O  O6  1  0.810  0.514  0.298  1.0
  O  O7  1  0.203  0.898  0.288  1.0
  O  O8  1  0.518  0.702  0.192  1.0
  O  O9  1  0.900  0.714  0.799  1.0
  O  O10  1  0.100  0.285  0.202  1.0
  O  O11  1  0.482  0.297  0.808  1.0
  O  O12  1  0.714  0.206  0.096  1.0
  O  O13  1  0.703  0.810  0.489  1.0
  O  O14  1  0.297  0.189  0.514  1.0
  O  O15  1  0.287  0.793  0.904  1.0
  V  V16  1  0.000  0.001  0.500  1.0
  V  V17  1  0.999  0.500  0.000  1.0
  V  V18  1  0.500  0.500  0.500  1.0
  V  V19  1  0.500  0.000  0.000  1.0
[/CIF]
.