Inorganic Chemistry, Vol.50, No.2, 403-405, 2011
Hydrogen Storage in a Highly Interpenetrated and Partially Fluorinated Metal-Organic Framework
A partially fluorinated metal organic framework, Zn(bpe)(tftpa)center dot cyclohexanone [bpe = 1,2-bis(4-pyridyl)ethane; tftpa = tetrafluoroterephthalate], has been synthesized, and its H-2 storage properties are reported. Tie structure is highly interpenetrated yet contains templating cyclohexanone molecules, which can be easily removed to give a porous material with fluorine atoms exposed to the pore surface. The material adsorbs 1.04 wt % H-2 at 77 K and 1 atm with an adsorption enthalpy (Q(st)) of 6.2 kJ/mol, which represents a slight enhancement in the binding strength due to the presence of fluorine atoms over comparable metal organic frameworks, which bird through purely physisorptive methods.