Locking the Spin States of Anionic Fe(L) 2 Units in Coordination Polymers through Alkali Metal Ions Incorporation

Key Points

• The aim is to investigate how incorporating alkali metal ions affects the spin states of FeII units in coordination polymers.
• Synthesis of coordination polymers incorporating alkali metal ions and FeII units.
• Characterization of spin states using spectroscopic techniques.
• Analysis of structural and magnetic properties.
• Alkali metal ions successfully stabilize specific spin states of FeII units.
• The incorporation alters the magnetic properties of the polymer structures.
• Significant differences in spin crossover behavior observed compared to non-modified compounds.