Outside Front Cover: Synthesis of Molecular Organo-f-Element-Polyphosphides With Non-Classical Divalent Lanthanide Precursors (Angew. Chem. 29/2025)

Abstract

The cover picture shows the largest polyphosphides of the f-elements, which is a P₁₄^4- polyphosphide Zintl anion coordinated to two lanthanide and two potassium ions. These compounds were obtained by reduction of white phosphorus with precursors of the early non-classical divalent lanthanides, as reported by Peter W. Roesky et al. in their Communication (e202503403). The central P₁₄^4- tetradecaphosphide Zintl ion, can be interpreted as a P-P bridged dimer of two nortricyclane P₇^2- units. The artwork was designed by Alicia K. Finch.