pH-Modulated Molecular Assemblies and Surface Properties of Metal-Organic Supercontainers at the Air-Water Interface

The orientation of metal–organic supercontainer (MOSC) molecules in Langmuir films was systematically studied at the air–water interface. The acidity of the aqueous subphases plays a significant role in tuning the orientation of MOSC molecules in the Langmuir films. Furthermore, Langmuir–Blodgett films of MOSCs were prepared and the uniform multilayer structures demonstrated various surface properties, depending on their conditions of fabrication. Our use of Langmuir films provides a novel approach to access tunable assemblies of MOSC molecules in two‐dimensional thin films. MOSC thin films: The molecular assemblies of metal–organic supercontainers (MOSCs) were studied at the air–water interface. Variation in the pH values of the subphases causes significant changes in the molecular orientation in the Langmuir films. The uniform MOSC structures in Langmuir–Blodgett films show tunable surface properties that can be precisely controlled by the fabricating conditions.