A multi-stack porphyrin oligomer with three cleft-like cavities for efficient guest encapsulations†
Abstract
We report here the design and synthesis of a covalently linked stacked tetra porphyrin oligomer, which has been a challenging task so far. The interlinking phenanthroline units and several intramolecular H-bonds help the molecule to fold into a sheet-like structure with three cleft-like cavities that bind two electron-deficient guests with high binding constant.