The roles of rod-packed organic units for preparing stable porous coordination polymers with carboxylate ligands

• A new porous structure (La-BTC), and other three previously reported La-based PCPs, were synthesized and characterized.
• We firstly and systemically investigated the roles organic units for preparing stable PCPs with carboxylate ligands.
• The rod-packed organic units with short distance of adjacent ligands, bridged by metals chains, can access the stable PCP.

Despite tremendous efforts, designing and preparing water, chemical, and moisture stable porous coordination polymers (PCPs) with carboxylate ligands remain a challenge. Here, we firstly and systemically investigated the roles of rod-packed organic units for preparing the stable PCPs with different carboxylate ligands. The experimental results demonstrated that the rod packed organic units with short distance of adjacent ligands, bridged by La3 + metal chain, can form water, chemical, and moisture stable PCPs.

We firstly and systemically investigate the stability of four La-based PCPs with carboxylate ligands, and demonstrate a new method via bridging of La3 + metal chain by rod packed organic units for accessing stable PCPs.Figure optionsDownload as PowerPoint slide