The compound described by K5NaNi5(P2O7)4 crystallizes in the triclinic P1 space group. There are five inequivalent K sites. In the first K site, K(1) is bonded in a 9-coordinate geometry to one O(11), one O(14), one O(21), one O(22), one O(25), one O(27), one O(3), one O(7), and one O(9) atom. In the second K site, K(2) is bonded in a 9-coordinate geometry to one O(10), one O(12), one O(13), one O(21), one O(22), one O(26), one O(28), one O(4), and one O(8) atom. In the third K site, K(3) is bonded in a 8-coordinate geometry to one O(1), one O(11), one O(15), one O(17), one O(18), one O(25), one O(5), and one O(8) atom. In the fourth K site, K(4) is bonded in a 7-coordinate geometry to one O(12), one O(16), one O(17), one O(18), one O(2), one O(26), and one O(7) atom. In the fifth K site, K(5) is bonded to one O(17), one O(18), one O(19), one O(20), one O(5), and one O(6) atom to form distorted KO6 octahedra that share  a cornercorner with one Ni(2)O6 octahedra,  a cornercorner with one Ni(3)O6 octahedra,  a cornercorner with one P(1)O4 tetrahedra,  a cornercorner with one P(2)O4 tetrahedra,  a cornercorner with one P(3)O4 tetrahedra,  a cornercorner with one P(4)O4 tetrahedra,  a cornercorner with one P(5)O4 tetrahedra,  a cornercorner with one P(6)O4 tetrahedra, and  an edgeedge with one Ni(5)O5 square pyramid. The corner-sharing octahedral tilt angles range from 66-67°. Na(1) is bonded in a 5-coordinate geometry to one O(10), one O(18), one O(28), one O(5), and one O(8) atom. There are five inequivalent Ni sites. In the first Ni site, Ni(1) is bonded to one O(13), one O(14), one O(15), one O(16), one O(25), and one O(26) atom to form NiO6 octahedra that share  a cornercorner with one P(1)O4 tetrahedra,  a cornercorner with one P(2)O4 tetrahedra,  a cornercorner with one P(3)O4 tetrahedra,  a cornercorner with one P(4)O4 tetrahedra,  a cornercorner with one P(7)O4 tetrahedra,  a cornercorner with one P(8)O4 tetrahedra,  an edgeedge with one Ni(2)O6 octahedra, and  an edgeedge with one Ni(3)O6 octahedra. In the second Ni site, Ni(2) is bonded to one O(12), one O(13), one O(16), one O(20), one O(23), and one O(24) atom to form NiO6 octahedra that share  a cornercorner with one K(5)O6 octahedra,  a cornercorner with one P(1)O4 tetrahedra,  a cornercorner with one P(2)O4 tetrahedra,  a cornercorner with one P(4)O4 tetrahedra,  a cornercorner with one P(6)O4 tetrahedra,  a cornercorner with one P(7)O4 tetrahedra,  a cornercorner with one P(8)O4 tetrahedra,  an edgeedge with one Ni(1)O6 octahedra, and  an edgeedge with one Ni(3)O6 octahedra. The corner-sharing octahedral tilt angles are 67°. In the third Ni site, Ni(3) is bonded to one O(11), one O(14), one O(15), one O(19), one O(23), and one O(24) atom to form NiO6 octahedra that share  a cornercorner with one K(5)O6 octahedra,  a cornercorner with one P(1)O4 tetrahedra,  a cornercorner with one P(2)O4 tetrahedra,  a cornercorner with one P(3)O4 tetrahedra,  a cornercorner with one P(5)O4 tetrahedra,  a cornercorner with one P(7)O4 tetrahedra,  a cornercorner with one P(8)O4 tetrahedra,  an edgeedge with one Ni(1)O6 octahedra, and  an edgeedge with one Ni(2)O6 octahedra. The corner-sharing octahedral tilt angles are 66°. In the fourth Ni site, Ni(4) is bonded to one O(10), one O(21), one O(22), one O(27), one O(28), and one O(9) atom to form NiO6 octahedra that share  a cornercorner with one P(1)O4 tetrahedra,  a cornercorner with one P(2)O4 tetrahedra,  a cornercorner with one P(3)O4 tetrahedra,  a cornercorner with one P(4)O4 tetrahedra,  a cornercorner with one P(7)O4 tetrahedra,  a cornercorner with one P(8)O4 tetrahedra, and  an edgeedge with one Ni(5)O5 square pyramid. In the fifth Ni site, Ni(5) is bonded to one O(17), one O(27), one O(6), one O(7), and one O(9) atom to form distorted NiO5 square pyramids that share  a cornercorner with one P(5)O4 tetrahedra,  a cornercorner with one P(6)O4 tetrahedra,  a cornercorner with one P(7)O4 tetrahedra,  an edgeedge with one K(5)O6 octahedra,  an edgeedge with one Ni(4)O6 octahedra, and  an edgeedge with one P(3)O4 tetrahedra. There are eight inequivalent P sites. In the first P site, P(1) is bonded to one O(13), one O(19), one O(21), and one O(3) atom to form PO4 tetrahedra that share  a cornercorner with one K(5)O6 octahedra,  a cornercorner with one Ni(1)O6 octahedra,  a cornercorner with one Ni(2)O6 octahedra,  a cornercorner with one Ni(3)O6 octahedra,  a cornercorner with one Ni(4)O6 octahedra, and  a cornercorner with one P(3)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 38-63°. In the second P site, P(2) is bonded to one O(14), one O(20), one O(22), and one O(4) atom to form PO4 tetrahedra that share  a cornercorner with one K(5)O6 octahedra,  a cornercorner with one Ni(1)O6 octahedra,  a cornercorner with one Ni(2)O6 octahedra,  a cornercorner with one Ni(3)O6 octahedra,  a cornercorner with one Ni(4)O6 octahedra, and  a cornercorner with one P(4)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 40-61°. In the third P site, P(3) is bonded to one O(15), one O(17), one O(3), and one O(9) atom to form PO4 tetrahedra that share  a cornercorner with one K(5)O6 octahedra,  a cornercorner with one Ni(1)O6 octahedra,  a cornercorner with one Ni(3)O6 octahedra,  a cornercorner with one Ni(4)O6 octahedra,  a cornercorner with one P(1)O4 tetrahedra, and  an edgeedge with one Ni(5)O5 square pyramid. The corner-sharing octahedral tilt angles range from 31-48°. In the fourth P site, P(4) is bonded to one O(10), one O(16), one O(18), and one O(4) atom to form PO4 tetrahedra that share  a cornercorner with one K(5)O6 octahedra,  a cornercorner with one Ni(1)O6 octahedra,  a cornercorner with one Ni(2)O6 octahedra,  a cornercorner with one Ni(4)O6 octahedra, and  a cornercorner with one P(2)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 30-49°. In the fifth P site, P(5) is bonded to one O(1), one O(11), one O(5), and one O(7) atom to form PO4 tetrahedra that share  a cornercorner with one K(5)O6 octahedra,  a cornercorner with one Ni(3)O6 octahedra,  a cornercorner with one Ni(5)O5 square pyramid, and  a cornercorner with one P(7)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 53-71°. In the sixth P site, P(6) is bonded to one O(12), one O(2), one O(6), and one O(8) atom to form PO4 tetrahedra that share  a cornercorner with one K(5)O6 octahedra,  a cornercorner with one Ni(2)O6 octahedra,  a cornercorner with one Ni(5)O5 square pyramid, and  a cornercorner with one P(8)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 52-73°. In the seventh P site, P(7) is bonded to one O(1), one O(23), one O(25), and one O(27) atom to form PO4 tetrahedra that share  a cornercorner with one Ni(1)O6 octahedra,  a cornercorner with one Ni(2)O6 octahedra,  a cornercorner with one Ni(3)O6 octahedra,  a cornercorner with one Ni(4)O6 octahedra,  a cornercorner with one Ni(5)O5 square pyramid, and  a cornercorner with one P(5)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 46-57°. In the eighth P site, P(8) is bonded to one O(2), one O(24), one O(26), and one O(28) atom to form PO4 tetrahedra that share  a cornercorner with one Ni(1)O6 octahedra,  a cornercorner with one Ni(2)O6 octahedra,  a cornercorner with one Ni(3)O6 octahedra,  a cornercorner with one Ni(4)O6 octahedra, and  a cornercorner with one P(6)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 42-57°. There are twenty-eight inequivalent O sites. In the first O site, O(1) is bonded in a distorted bent 120 degrees geometry to one K(3), one P(5), and one P(7) atom. In the second O site, O(2) is bonded in a distorted bent 120 degrees geometry to one K(4), one P(6), and one P(8) atom. In the third O site, O(3) is bonded in a distorted bent 150 degrees geometry to one K(1), one P(1), and one P(3) atom. In the fourth O site, O(4) is bonded in a distorted bent 150 degrees geometry to one K(2), one P(2), and one P(4) atom. In the fifth O site, O(5) is bonded in a 2-coordinate geometry to one K(3), one K(5), one Na(1), and one P(5) atom. In the sixth O site, O(6) is bonded in a 3-coordinate geometry to one K(5), one Ni(5), and one P(6) atom. In the seventh O site, O(7) is bonded in a 4-coordinate geometry to one K(1), one K(4), one Ni(5), and one P(5) atom. In the eighth O site, O(8) is bonded in a 4-coordinate geometry to one K(2), one K(3), one Na(1), and one P(6) atom. In the ninth O site, O(9) is bonded in a 3-coordinate geometry to one K(1), one Ni(4), one Ni(5), and one P(3) atom. In the tenth O site, O(10) is bonded in a 3-coordinate geometry to one K(2), one Na(1), one Ni(4), and one P(4) atom. In the eleventh O site, O(11) is bonded in a 4-coordinate geometry to one K(1), one K(3), one Ni(3), and one P(5) atom. In the twelfth O site, O(12) is bonded in a 3-coordinate geometry to one K(2), one K(4), one Ni(2), and one P(6) atom. In the thirteenth O site, O(13) is bonded in a 4-coordinate geometry to one K(2), one Ni(1), one Ni(2), and one P(1) atom. In the fourteenth O site, O(14) is bonded in a 4-coordinate geometry to one K(1), one Ni(1), one Ni(3), and one P(2) atom. In the fifteenth O site, O(15) is bonded in a 3-coordinate geometry to one K(3), one Ni(1), one Ni(3), and one P(3) atom. In the sixteenth O site, O(16) is bonded in a 3-coordinate geometry to one K(4), one Ni(1), one Ni(2), and one P(4) atom. In the seventeenth O site, O(17) is bonded in a 1-coordinate geometry to one K(3), one K(4), one K(5), one Ni(5), and one P(3) atom. In the eighteenth O site, O(18) is bonded in a 5-coordinate geometry to one K(3), one K(4), one K(5), one Na(1), and one P(4) atom. In the nineteenth O site, O(19) is bonded in a distorted trigonal planar geometry to one K(5), one Ni(3), and one P(1) atom. In the twentieth O site, O(20) is bonded in a distorted trigonal planar geometry to one K(5), one Ni(2), and one P(2) atom. In the twenty-first O site, O(21) is bonded in a distorted single-bond geometry to one K(1), one K(2), one Ni(4), and one P(1) atom. In the twenty-second O site, O(22) is bonded in a distorted single-bond geometry to one K(1), one K(2), one Ni(4), and one P(2) atom. In the twenty-third O site, O(23) is bonded in a 3-coordinate geometry to one Ni(2), one Ni(3), and one P(7) atom. In the twenty-fourth O site, O(24) is bonded in a distorted trigonal planar geometry to one Ni(2), one Ni(3), and one P(8) atom. In the twenty-fifth O site, O(25) is bonded in a 4-coordinate geometry to one K(1), one K(3), one Ni(1), and one P(7) atom. In the twenty-sixth O site, O(26) is bonded in a 4-coordinate geometry to one K(2), one K(4), one Ni(1), and one P(8) atom. In the twenty-seventh O site, O(27) is bonded in a 3-coordinate geometry to one K(1), one Ni(4), one Ni(5), and one P(7) atom. In the twenty-eighth O site, O(28) is bonded in a 3-coordinate geometry to one K(2), one Na(1), one Ni(4), and one P(8) atom. is represented by the CIF card [CIF]
data_K5NaNi5(P2O7)4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.284
_cell_length_b   9.422
_cell_length_c   10.219
_cell_angle_alpha   109.527
_cell_angle_beta   89.482
_cell_angle_gamma   104.189
_symmetry_Int_Tables_number   1
_cell_volume   638.782
_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
  K  K0  1  1.000  0.551  0.825  1.0
  K  K1  1  0.001  0.455  0.184  1.0
  K  K2  1  0.950  0.802  0.575  1.0
  K  K3  1  0.054  0.188  0.415  1.0
  K  K4  1  0.502  0.996  0.496  1.0
  Na  Na5  1  0.566  0.628  0.326  1.0
  Ni  Ni6  1  0.001  1.000  0.998  1.0
  Ni  Ni7  1  0.640  0.041  0.129  1.0
  Ni  Ni8  1  0.363  0.959  0.877  1.0
  Ni  Ni9  1  0.504  0.506  0.001  1.0
  Ni  Ni10  1  0.422  0.378  0.683  1.0
  P  P11  1  0.751  0.189  0.875  1.0
  P  P12  1  0.251  0.810  0.124  1.0
  P  P13  1  0.151  0.187  0.778  1.0
  P  P14  1  0.853  0.817  0.217  1.0
  P  P15  1  0.338  0.656  0.607  1.0
  P  P16  1  0.649  0.343  0.403  1.0
  P  P17  1  0.639  0.740  0.827  1.0
  P  P18  1  0.362  0.260  0.166  1.0
  O  O19  1  0.565  0.717  0.670  1.0
  O  O20  1  0.433  0.294  0.327  1.0
  O  O21  1  0.931  0.191  0.768  1.0
  O  O22  1  0.076  0.812  0.229  1.0
  O  O23  1  0.338  0.673  0.466  1.0
  O  O24  1  0.611  0.322  0.545  1.0
  O  O25  1  0.268  0.486  0.606  1.0
  O  O26  1  0.748  0.507  0.411  1.0
  O  O27  1  0.273  0.355  0.856  1.0
  O  O28  1  0.740  0.653  0.130  1.0
  O  O29  1  0.238  0.764  0.711  1.0
  O  O30  1  0.747  0.222  0.311  1.0
  O  O31  1  0.826  0.142  0.992  1.0
  O  O32  1  0.179  0.859  0.007  1.0
  O  O33  1  0.160  0.066  0.846  1.0
  O  O34  1  0.850  0.941  0.150  1.0
  O  O35  1  0.214  0.146  0.629  1.0
  O  O36  1  0.802  0.867  0.368  1.0
  O  O37  1  0.583  0.068  0.780  1.0
  O  O38  1  0.422  0.929  0.218  1.0
  O  O39  1  0.731  0.355  0.925  1.0
  O  O40  1  0.271  0.644  0.071  1.0
  O  O41  1  0.542  0.850  0.933  1.0
  O  O42  1  0.463  0.145  0.068  1.0
  O  O43  1  0.852  0.803  0.835  1.0
  O  O44  1  0.149  0.192  0.161  1.0
  O  O45  1  0.581  0.573  0.834  1.0
  O  O46  1  0.412  0.418  0.147  1.0
[/CIF]
.
The compound described by K5NaNi5(P2O7)4 crystallizes in the triclinic P1 space group. There are five inequivalent K sites. In the first K site, K(1) is bonded in a 9-coordinate geometry to one O(11), one O(14), one O(21), one O(22), one O(25), one O(27), one O(3), one O(7), and one O(9) atom. In the second K site, K(2) is bonded in a 9-coordinate geometry to one O(10), one O(12), one O(13), one O(21), one O(22), one O(26), one O(28), one O(4), and one O(8) atom. In the third K site, K(3) is bonded in a 8-coordinate geometry to one O(1), one O(11), one O(15), one O(17), one O(18), one O(25), one O(5), and one O(8) atom. In the fourth K site, K(4) is bonded in a 7-coordinate geometry to one O(12), one O(16), one O(17), one O(18), one O(2), one O(26), and one O(7) atom. In the fifth K site, K(5) is bonded to one O(17), one O(18), one O(19), one O(20), one O(5), and one O(6) atom to form distorted KO6 octahedra that share  a cornercorner with one Ni(2)O6 octahedra,  a cornercorner with one Ni(3)O6 octahedra,  a cornercorner with one P(1)O4 tetrahedra,  a cornercorner with one P(2)O4 tetrahedra,  a cornercorner with one P(3)O4 tetrahedra,  a cornercorner with one P(4)O4 tetrahedra,  a cornercorner with one P(5)O4 tetrahedra,  a cornercorner with one P(6)O4 tetrahedra, and  an edgeedge with one Ni(5)O5 square pyramid. The corner-sharing octahedral tilt angles range from 66-67°. Na(1) is bonded in a 5-coordinate geometry to one O(10), one O(18), one O(28), one O(5), and one O(8) atom. There are five inequivalent Ni sites. In the first Ni site, Ni(1) is bonded to one O(13), one O(14), one O(15), one O(16), one O(25), and one O(26) atom to form NiO6 octahedra that share  a cornercorner with one P(1)O4 tetrahedra,  a cornercorner with one P(2)O4 tetrahedra,  a cornercorner with one P(3)O4 tetrahedra,  a cornercorner with one P(4)O4 tetrahedra,  a cornercorner with one P(7)O4 tetrahedra,  a cornercorner with one P(8)O4 tetrahedra,  an edgeedge with one Ni(2)O6 octahedra, and  an edgeedge with one Ni(3)O6 octahedra. In the second Ni site, Ni(2) is bonded to one O(12), one O(13), one O(16), one O(20), one O(23), and one O(24) atom to form NiO6 octahedra that share  a cornercorner with one K(5)O6 octahedra,  a cornercorner with one P(1)O4 tetrahedra,  a cornercorner with one P(2)O4 tetrahedra,  a cornercorner with one P(4)O4 tetrahedra,  a cornercorner with one P(6)O4 tetrahedra,  a cornercorner with one P(7)O4 tetrahedra,  a cornercorner with one P(8)O4 tetrahedra,  an edgeedge with one Ni(1)O6 octahedra, and  an edgeedge with one Ni(3)O6 octahedra. The corner-sharing octahedral tilt angles are 67°. In the third Ni site, Ni(3) is bonded to one O(11), one O(14), one O(15), one O(19), one O(23), and one O(24) atom to form NiO6 octahedra that share  a cornercorner with one K(5)O6 octahedra,  a cornercorner with one P(1)O4 tetrahedra,  a cornercorner with one P(2)O4 tetrahedra,  a cornercorner with one P(3)O4 tetrahedra,  a cornercorner with one P(5)O4 tetrahedra,  a cornercorner with one P(7)O4 tetrahedra,  a cornercorner with one P(8)O4 tetrahedra,  an edgeedge with one Ni(1)O6 octahedra, and  an edgeedge with one Ni(2)O6 octahedra. The corner-sharing octahedral tilt angles are 66°. In the fourth Ni site, Ni(4) is bonded to one O(10), one O(21), one O(22), one O(27), one O(28), and one O(9) atom to form NiO6 octahedra that share  a cornercorner with one P(1)O4 tetrahedra,  a cornercorner with one P(2)O4 tetrahedra,  a cornercorner with one P(3)O4 tetrahedra,  a cornercorner with one P(4)O4 tetrahedra,  a cornercorner with one P(7)O4 tetrahedra,  a cornercorner with one P(8)O4 tetrahedra, and  an edgeedge with one Ni(5)O5 square pyramid. In the fifth Ni site, Ni(5) is bonded to one O(17), one O(27), one O(6), one O(7), and one O(9) atom to form distorted NiO5 square pyramids that share  a cornercorner with one P(5)O4 tetrahedra,  a cornercorner with one P(6)O4 tetrahedra,  a cornercorner with one P(7)O4 tetrahedra,  an edgeedge with one K(5)O6 octahedra,  an edgeedge with one Ni(4)O6 octahedra, and  an edgeedge with one P(3)O4 tetrahedra. There are eight inequivalent P sites. In the first P site, P(1) is bonded to one O(13), one O(19), one O(21), and one O(3) atom to form PO4 tetrahedra that share  a cornercorner with one K(5)O6 octahedra,  a cornercorner with one Ni(1)O6 octahedra,  a cornercorner with one Ni(2)O6 octahedra,  a cornercorner with one Ni(3)O6 octahedra,  a cornercorner with one Ni(4)O6 octahedra, and  a cornercorner with one P(3)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 38-63°. In the second P site, P(2) is bonded to one O(14), one O(20), one O(22), and one O(4) atom to form PO4 tetrahedra that share  a cornercorner with one K(5)O6 octahedra,  a cornercorner with one Ni(1)O6 octahedra,  a cornercorner with one Ni(2)O6 octahedra,  a cornercorner with one Ni(3)O6 octahedra,  a cornercorner with one Ni(4)O6 octahedra, and  a cornercorner with one P(4)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 40-61°. In the third P site, P(3) is bonded to one O(15), one O(17), one O(3), and one O(9) atom to form PO4 tetrahedra that share  a cornercorner with one K(5)O6 octahedra,  a cornercorner with one Ni(1)O6 octahedra,  a cornercorner with one Ni(3)O6 octahedra,  a cornercorner with one Ni(4)O6 octahedra,  a cornercorner with one P(1)O4 tetrahedra, and  an edgeedge with one Ni(5)O5 square pyramid. The corner-sharing octahedral tilt angles range from 31-48°. In the fourth P site, P(4) is bonded to one O(10), one O(16), one O(18), and one O(4) atom to form PO4 tetrahedra that share  a cornercorner with one K(5)O6 octahedra,  a cornercorner with one Ni(1)O6 octahedra,  a cornercorner with one Ni(2)O6 octahedra,  a cornercorner with one Ni(4)O6 octahedra, and  a cornercorner with one P(2)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 30-49°. In the fifth P site, P(5) is bonded to one O(1), one O(11), one O(5), and one O(7) atom to form PO4 tetrahedra that share  a cornercorner with one K(5)O6 octahedra,  a cornercorner with one Ni(3)O6 octahedra,  a cornercorner with one Ni(5)O5 square pyramid, and  a cornercorner with one P(7)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 53-71°. In the sixth P site, P(6) is bonded to one O(12), one O(2), one O(6), and one O(8) atom to form PO4 tetrahedra that share  a cornercorner with one K(5)O6 octahedra,  a cornercorner with one Ni(2)O6 octahedra,  a cornercorner with one Ni(5)O5 square pyramid, and  a cornercorner with one P(8)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 52-73°. In the seventh P site, P(7) is bonded to one O(1), one O(23), one O(25), and one O(27) atom to form PO4 tetrahedra that share  a cornercorner with one Ni(1)O6 octahedra,  a cornercorner with one Ni(2)O6 octahedra,  a cornercorner with one Ni(3)O6 octahedra,  a cornercorner with one Ni(4)O6 octahedra,  a cornercorner with one Ni(5)O5 square pyramid, and  a cornercorner with one P(5)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 46-57°. In the eighth P site, P(8) is bonded to one O(2), one O(24), one O(26), and one O(28) atom to form PO4 tetrahedra that share  a cornercorner with one Ni(1)O6 octahedra,  a cornercorner with one Ni(2)O6 octahedra,  a cornercorner with one Ni(3)O6 octahedra,  a cornercorner with one Ni(4)O6 octahedra, and  a cornercorner with one P(6)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 42-57°. There are twenty-eight inequivalent O sites. In the first O site, O(1) is bonded in a distorted bent 120 degrees geometry to one K(3), one P(5), and one P(7) atom. In the second O site, O(2) is bonded in a distorted bent 120 degrees geometry to one K(4), one P(6), and one P(8) atom. In the third O site, O(3) is bonded in a distorted bent 150 degrees geometry to one K(1), one P(1), and one P(3) atom. In the fourth O site, O(4) is bonded in a distorted bent 150 degrees geometry to one K(2), one P(2), and one P(4) atom. In the fifth O site, O(5) is bonded in a 2-coordinate geometry to one K(3), one K(5), one Na(1), and one P(5) atom. In the sixth O site, O(6) is bonded in a 3-coordinate geometry to one K(5), one Ni(5), and one P(6) atom. In the seventh O site, O(7) is bonded in a 4-coordinate geometry to one K(1), one K(4), one Ni(5), and one P(5) atom. In the eighth O site, O(8) is bonded in a 4-coordinate geometry to one K(2), one K(3), one Na(1), and one P(6) atom. In the ninth O site, O(9) is bonded in a 3-coordinate geometry to one K(1), one Ni(4), one Ni(5), and one P(3) atom. In the tenth O site, O(10) is bonded in a 3-coordinate geometry to one K(2), one Na(1), one Ni(4), and one P(4) atom. In the eleventh O site, O(11) is bonded in a 4-coordinate geometry to one K(1), one K(3), one Ni(3), and one P(5) atom. In the twelfth O site, O(12) is bonded in a 3-coordinate geometry to one K(2), one K(4), one Ni(2), and one P(6) atom. In the thirteenth O site, O(13) is bonded in a 4-coordinate geometry to one K(2), one Ni(1), one Ni(2), and one P(1) atom. In the fourteenth O site, O(14) is bonded in a 4-coordinate geometry to one K(1), one Ni(1), one Ni(3), and one P(2) atom. In the fifteenth O site, O(15) is bonded in a 3-coordinate geometry to one K(3), one Ni(1), one Ni(3), and one P(3) atom. In the sixteenth O site, O(16) is bonded in a 3-coordinate geometry to one K(4), one Ni(1), one Ni(2), and one P(4) atom. In the seventeenth O site, O(17) is bonded in a 1-coordinate geometry to one K(3), one K(4), one K(5), one Ni(5), and one P(3) atom. In the eighteenth O site, O(18) is bonded in a 5-coordinate geometry to one K(3), one K(4), one K(5), one Na(1), and one P(4) atom. In the nineteenth O site, O(19) is bonded in a distorted trigonal planar geometry to one K(5), one Ni(3), and one P(1) atom. In the twentieth O site, O(20) is bonded in a distorted trigonal planar geometry to one K(5), one Ni(2), and one P(2) atom. In the twenty-first O site, O(21) is bonded in a distorted single-bond geometry to one K(1), one K(2), one Ni(4), and one P(1) atom. In the twenty-second O site, O(22) is bonded in a distorted single-bond geometry to one K(1), one K(2), one Ni(4), and one P(2) atom. In the twenty-third O site, O(23) is bonded in a 3-coordinate geometry to one Ni(2), one Ni(3), and one P(7) atom. In the twenty-fourth O site, O(24) is bonded in a distorted trigonal planar geometry to one Ni(2), one Ni(3), and one P(8) atom. In the twenty-fifth O site, O(25) is bonded in a 4-coordinate geometry to one K(1), one K(3), one Ni(1), and one P(7) atom. In the twenty-sixth O site, O(26) is bonded in a 4-coordinate geometry to one K(2), one K(4), one Ni(1), and one P(8) atom. In the twenty-seventh O site, O(27) is bonded in a 3-coordinate geometry to one K(1), one Ni(4), one Ni(5), and one P(7) atom. In the twenty-eighth O site, O(28) is bonded in a 3-coordinate geometry to one K(2), one Na(1), one Ni(4), and one P(8) atom. is represented by the CIF card [CIF]
data_K5NaNi5(P2O7)4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.284
_cell_length_b   9.422
_cell_length_c   10.219
_cell_angle_alpha   109.527
_cell_angle_beta   89.482
_cell_angle_gamma   104.189
_symmetry_Int_Tables_number   1
_cell_volume   638.782
_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
  K  K0  1  1.000  0.551  0.825  1.0
  K  K1  1  0.001  0.455  0.184  1.0
  K  K2  1  0.950  0.802  0.575  1.0
  K  K3  1  0.054  0.188  0.415  1.0
  K  K4  1  0.502  0.996  0.496  1.0
  Na  Na5  1  0.566  0.628  0.326  1.0
  Ni  Ni6  1  0.001  1.000  0.998  1.0
  Ni  Ni7  1  0.640  0.041  0.129  1.0
  Ni  Ni8  1  0.363  0.959  0.877  1.0
  Ni  Ni9  1  0.504  0.506  0.001  1.0
  Ni  Ni10  1  0.422  0.378  0.683  1.0
  P  P11  1  0.751  0.189  0.875  1.0
  P  P12  1  0.251  0.810  0.124  1.0
  P  P13  1  0.151  0.187  0.778  1.0
  P  P14  1  0.853  0.817  0.217  1.0
  P  P15  1  0.338  0.656  0.607  1.0
  P  P16  1  0.649  0.343  0.403  1.0
  P  P17  1  0.639  0.740  0.827  1.0
  P  P18  1  0.362  0.260  0.166  1.0
  O  O19  1  0.565  0.717  0.670  1.0
  O  O20  1  0.433  0.294  0.327  1.0
  O  O21  1  0.931  0.191  0.768  1.0
  O  O22  1  0.076  0.812  0.229  1.0
  O  O23  1  0.338  0.673  0.466  1.0
  O  O24  1  0.611  0.322  0.545  1.0
  O  O25  1  0.268  0.486  0.606  1.0
  O  O26  1  0.748  0.507  0.411  1.0
  O  O27  1  0.273  0.355  0.856  1.0
  O  O28  1  0.740  0.653  0.130  1.0
  O  O29  1  0.238  0.764  0.711  1.0
  O  O30  1  0.747  0.222  0.311  1.0
  O  O31  1  0.826  0.142  0.992  1.0
  O  O32  1  0.179  0.859  0.007  1.0
  O  O33  1  0.160  0.066  0.846  1.0
  O  O34  1  0.850  0.941  0.150  1.0
  O  O35  1  0.214  0.146  0.629  1.0
  O  O36  1  0.802  0.867  0.368  1.0
  O  O37  1  0.583  0.068  0.780  1.0
  O  O38  1  0.422  0.929  0.218  1.0
  O  O39  1  0.731  0.355  0.925  1.0
  O  O40  1  0.271  0.644  0.071  1.0
  O  O41  1  0.542  0.850  0.933  1.0
  O  O42  1  0.463  0.145  0.068  1.0
  O  O43  1  0.852  0.803  0.835  1.0
  O  O44  1  0.149  0.192  0.161  1.0
  O  O45  1  0.581  0.573  0.834  1.0
  O  O46  1  0.412  0.418  0.147  1.0
[/CIF]
.