Spin state modulation and chiral hierarchical assembly via amine-driven single-crystal-to-single-crystal transformation

Key Points

• Halogen-bonds formed in supramolecular frameworks highlight potential in chiral synthesis.
• Key evidence includes the formation of stable complexes using Fe-BF4 with NH sites.
• Analysis of mononuclear Fe(II) synthon allows modulation of spin states through molecular interactions.
• This approach may enable new developments in chiral materials and molecular assembly.