Metal–organic frameworks with improved moisture stability based on a phosphonate monoester: effect of auxiliary N-donor ligands on framework dimensionality

摘要: A series of metal–organic frameworks (MOFs) based on a phosphonate monoester ligand, with structures featuring 1D chains, 2D layers or double layers, and 3D networks, have been successfully obtained in the presence auxiliary N-donor ligands. The monoester, behaving as carboxylate linker, bridges metal ions, while ligands play crucial role both structural diversity dimensionality variation resultant MOFs. Remarkably, hydrophobic ethyl groups present linker offer protection/shielding for hydrolytically vulnerable M–O bonds, resulting MOFs being highly moisture stable, expected. porous networks exhibited CO2 adsorption strong fluorescence emission.