The nature of frontier orbitals under systematic ligand exchange in (pseudo-)octahedral Fe(II) complexes - Raphael M. Jay; Sebastian Eckert; Mattis Fondell; Piter S. Miedema; Jesper Norell; Annette Pietzsch; Wilson Quevedo; Johannes Niskanen; Kristjan Kunnus; Alexander Föhlisch (Royal society of chemistry, 2022)