Post-synthetic modification of porphyrin-encapsulating metal-organic materials by cooperative addition of inorganic salts to enhance CO2/CH4 selectivity

by Z. Zhang, W.Y. Gao, L. Wojtas, S. Ma, M. Eddaoudi, M.J. Zaworotko
Year: 2012 DOI: 10.1002/anie.201203594

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Angewandte Chemie - International Edition, 51 (37), 9330-9334, (2012)


Keeping MOM: Reaction of biphenyl-3,4',5-tricarboxylate and Cd(NO 3) 2 in the presence of meso-tetra(N-methyl-4-pyridyl) porphine tetratosylate afforded porph@MOM-11, a microporous metal-organic material (MOM) that encapsulates cationic porphyrins and solvent in alternating open channels. Porph@MOM-11 has cation and anion binding sites that facilitate cooperative addition of inorganic salts (such as M +Cl -) in a stoichiometric fashion.


CO2/CH4 selectivity Encapsulation Anion binding Cationic porphyrin Inorganic salts Metal Organic Framework Metal salt Metal-organic Microporous Open channels Porphine Porphyrinoids