Electronic and Magnetic Properties of Ferrous Iron in a True Square-Planar Molecular Environment. - Diederich TM; Wehland T; Schrodt M; Kochetov N; Schnegg A; Jimenez-Muñoz CM; Krewald V; Ni L; Salas NS; Kramm UI; Ballmann J; Enders M (Chemistry (Weinheim an der Bergstrasse, Germany), 2025)