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. Author manuscript; available in PMC: 2010 Jan 1.
Published in final edited form as: Angew Chem Int Ed Engl. 2009;48(19):3486–3490. doi: 10.1002/anie.200900134

Figure 3.

Figure 3

The porosity (highlighted by big grey spheres) of 6 (a) and its N2 (b, P/P0 is the ratio of gas pressure (P) to saturation pressure (P0), with P0 = 769 torr), CO2(c) and H2 (d) adsorption isotherms (■adsorption; ●desorption).