Abstract
Chiral spin crossover (SCO) complexes have attracted attention for their multifunctionality, including ferroelectricity and nonlinear optics. Building on this foundation, this project will develop enantiopure 1,3,4-triazole ligands (R/S from amino acids) and their Fe(II) complexes, alongside racemic analogues for direct comparison. Structural and spectroscopic analysis will guide a systematic study of spin-state switching using magnetic susceptibility, Mössbauer spectroscopy, Evans NMR, and Raman Optical Activity (ROA). Light- and magnetic field-induced switching (LIESST, reverse-LIESST, MIESST) will be investigated to test whether chirality alters the efficiency or kinetics of these processes. Finally, magnetoelectric coupling will be measured in single crystals to probe chirality dependent spin electric interactions. The results aim to establish fundamental design rules for chirality tuned SCO materials with potential applications in molecular spintronics and light/electrically addressable devices.