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Interplay of Metalloligand and Organic Ligand to Tune Micropores within Isostructural Mixed-Metal Organic Frameworks (M'MOFs) for Their Highly Selective Separation of Chiral and Achiral Small Molecules

Lookup NU author(s): Emeritus Professor Mark ThomasORCiD


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Four porous isostructural mixed-metal-organic frameworks (M'MOFs) have been synthesized and structurally characterized. The pores within these M'MOFs are systematically tuned by the interplay of both the metalloligands and organic ligands which have enabled us not only to direct their highly selective separation of chiral alcohols 1-phenylethanol (PEA), 2-butanol (BUT), and 2-pentanol (2-PEN) with the highest ee up to 82.4% but also to lead highly selective separation of achiral C2H2/C2H4 separation. The potential application of these M'MOFs for the fixed bed pressure swing adsorption (PSA) separation of C2H2/C2H4 has been further examined and compared by the transient breakthrough simulations in which the purity requirement of 40 ppm in the outlet gas can be readily fulfilled by the fixed bed M'MOF-4a adsorber at ambient conditions.

Publication metadata

Author(s): Das MC, Guo QS, He YB, Kim J, Zhao CG, Hong KL, Xiang SC, Zhang ZJ, Thomas KM, Krishna R, Chen BL

Publication type: Article

Publication status: Published

Journal: Journal of the American Chemical Society

Year: 2012

Volume: 134

Issue: 20

Pages: 8703-8710

Print publication date: 30/04/2012

ISSN (print): 0002-7863

ISSN (electronic): 1520-5126

Publisher: American Chemical Society


DOI: 10.1021/ja302380x


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Funder referenceFunder name
Office of Basic Energy Sciences, U.S. Department of Energy
AX-1593Welch Foundation
AX-1730Welch Foundation