A polyhedral oligomeric silsesquioxane functionalized copper trimesate

A metal-organic framework (MOF), copper trimesate (Cu-3(BTC)(2)), was selectively functionalized with aminopropylisooctyl polyhedral oligomeric silsesquioxane (O-POSS) to make the external surface of Cu-3(BTC)(2) hydrophobic and thereby enhance the stability of the material against humidity. POSS modification was also successfully applied to other MOFs such as MOF-74 and MIL-100.