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Symmetry Lab › C4v › Pentacyanonickelate(II) ion

[Ni(CN)₅]³⁻ Pentacyanonickelate(II) ion

Square pyramidal · point group C4v · order 8

Open [Ni(CN)₅]³⁻ in 3D →

Point group
C4v — A C4 rotation axis and 4 vertical mirror planes that contain it.
Order
8
Operations
E, 2C₄, C₂, 2σᵥ, 2σd
Shape
Square pyramidal
Atoms
11 (Ni, C × 5, N × 5)

Symmetry elements of [Ni(CN)₅]³⁻

  • C₄ — through the apical CN
  • σᵥ (xz) — contains the axis and two basal CN
  • σᵥ (yz) — contains the axis and the other two
  • σd (1) — contains the axis, between basal CN
  • σd (2) — contains the axis, between basal CN

Structure

  • Ni–C 1.94 Å (basal), 2.14 Å (apical, longer)
  • Apical–Ni–basal 100°
  • Five-coordinate d⁸
Pentacyanonickelate(II) ion ([Ni(CN)5]3-) — C4v symmetry elements
Pentacyanonickelate(II) ion: symmetry elements of the C4v point group

Other C4v molecules

BrF₅Bromine pentafluorideClF₅Chlorine pentafluorideIOF₅Iodine oxide pentafluorideIF₅Iodine pentafluorideTeF₅⁻Pentafluorotellurate(IV) ionXeF₅⁺Pentafluoroxenon(VI) ionSF₅ClSulfur chloride pentafluoride[VO(H₂O)₅]²⁺ (O atoms shown)Vanadyl ion, aqua complexXeOF₄Xenon oxytetrafluoride[Co(NH₃)₅Cl]²⁺Chloropentaamminecobalt(III) (N atoms shown)[MnCl(CO)₅]Chloropentacarbonylmanganese(I)

Open in the 3D lab →  ·  All C4v molecules  ·  All point groups