Solvent-induced structural transformation in luminescence-enhanced polymorphic ionic HOFs

Solvent regulation achieves structure and luminescence switching between two polymorphic ionic hydrogen-bonded organic frameworks (iHOFs) and induces conjugation changes that create a pronounced emission difference-the emission intensity of iHOF-65 is approximately 100 times that of iHOF-64. This provides a reference for clarifying the dynamic structural design and luminescence properties of solvate-regulated crystalline materials.