The Dog That Didn’t Bark: A New Interpretation of Hypsoporphyrin Spectra and the Question of Hypsocorroles
Abhik Ghosh, Jeanet Conradie
Abstract
HOMOs of Pd(II) and Pt(II) porphyrins accordingly exhibit lower orbital energies than those of Zn(II) porphyrins, thus explaining the hypso effect. Hypso spectra are also observed for corroles: compared with six-coordinate Al(III) corroles, which may be thought of exhibiting normal spectra, Au(III) corroles, for instance, exhibit blueshifted or hypso spectra.
Topics & Concepts
Antibonding molecular orbitalPorphyrinSpectral lineChemistryHOMO/LUMOCrystallographyMolecular orbitalMetalAtomic orbitalPhotochemistryElectronMoleculePhysicsOrganic chemistryQuantum mechanicsAstronomyPorphyrin and Phthalocyanine ChemistryPhotosynthetic Processes and MechanismsPhotochemistry and Electron Transfer Studies