Hexacovalent Bond Orbitals III

Abstract
A set of six equivalent orthogonal bond orbitals of trigonal antiprism symmetry are considered. The orbitals are of type snp3d3−n. The strongest orbitals are obtained when n equals 0.8427. These orbitals are only slightly stronger than the octahedral orbitals. The trigonal antiprism orbitals are stronger than the corresponding trigonal prism orbitals. The SF6, [Complex chemical formula], and Fe(CN)6 structures are discussed. The relation used for estimating energies is used to estimate bond energies of CH bonds in the structures [Complex chemical formula], and ≡C–H.