Open metal sites within isostructural metal-organic frameworks for differential recognition of acetylene and extraordinarily high acetylene storage capacity at room temperature

Chemical equcation Presented On the metal: Open metal sites within isostructural [M2(DHTP)] metal-organic frameworks (M = Co 2-, 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 cm3cm-3 at 295 K and 1 atm. © 2010 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim