Open Metal Sites within Isostructural Metal–Organic Frameworks for Differential Recognition of Acetylene and Extraordinarily High Acetylene Storage Capacity at Room Temperature

Authors

Shengchang Xiang

Published

May 25, 2010

Abstract

On the metal: Open metal sites within isostructural [M2(DHTP)] metal–organic frameworks (M=Co2+, Mn2+, Mg2+, and Zn2+; DHTP=2,5-dihydroxyterephthalate) exhibit differential molecular recognition with acetylene. The extremely strong interaction of Co2+ with acetylene (see structure) makes [Co2(DHTP)] the highest volumetric acetylene storage material with a capacity of 230 cm3 cm−3 at 295 K and 1 atm.