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Capped trigonal prismatic molecular geometry
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<p>In <a href="/facts/Chemistry/SrNqkGVm">chemistry</a>, the capped trigonal prismatic molecular geometry describes the shape of compounds where seven atoms or groups of atoms or ligands are arranged around a central atom defining the vertices of an <a href="/facts/Augmented_triangular_prism/6pKClXTh">augmented triangular prism</a>. This shape has C2v <a href="/facts/Molecular_symmetry/BrDxAkTK">symmetry</a> and is one of the three common shapes for heptacoordinate transition metal complexes, along with the <a href="/facts/Pentagonal_bipyramidal_molecular_geometry/tQ4fA46l">pentagonal bipyramid</a> and the <a href="/facts/Capped_octahedral_molecular_geometry/wDFf0pre">capped octahedron</a>. </p><p>Examples of the capped trigonal prismatic molecular geometry are the <a href="/facts/Potassium_heptafluorotantalate/yup3rQw5">heptafluorotantalate</a> (TaF2−7) and the heptafluoroniobate (NbF2−7) ions. </p>