The Two-Step Spin Conversion in a Supramolecular Triple Helicate Dinuclear Iron(II) Complex Studied by Mössbauer Spectroscopy. Eur. J. Inorg. Chem. 2006, 3333–3339). Keywords: spin-crossover; dinuclear triple helicate; Fe(II); solvent effects 1. Introduction Spin-crossover (SCO) materials ...