Oriented films of porous coordination polymer prepared by repeated in situ crystallization

The preparation of porous coordination polymers (PCPs) with pillared layer structure on modified substrates using in situ crystallization and layer-by-layer assembly, was presented. The crystalline films were obtained by growth of objective crystals coated on the substrates. X-ray diffraction (XRD) patterns of the prepared films were obtained by the repeated in situ crystallization on the modified gold substrates. The field emission scanning electron microscopy (FE-SEM) was used to analyze the evolution of the CPL-1 films. The growth procedure was repeated for getting the continuous film. The repeated in situ crystallization process increased seed crystals for the growth and crystal growth per unit area of the substrates. Results show that repeated crystallization can be suitable for the preparation of PCP films.