ESCA-Untersuchungen über die Ladungsverteilung und den Bindungszustand der λ3- und λ5-Phosphorine / ESCA-Studies of the Charge Distribution and Boding of λ3- and λ5-Phosphorines

Abstract

Abstract The ESCA -spectroscopic examination of λ3- and λ5-phosphorines supports the theory, that these compounds are to be described as aromatic compounds and as cyclic phosphonium-ylides, respectively. Contrary to simple electronegativity considerations, the phosphorus atom in the λ3- phosphorines is nearly neutral and not positively charged.