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American Chemical Society, Journal of the American Chemical Society, 20(134), p. 8703-8710, 2012

DOI: 10.1021/ja302380x

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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

Journal article published in 2012 by Madhab C. Das, Qunsheng Guo, Yabing He, Jaheon Kim, Cong-Gui Zhao, Kunlun Hong ORCID, Shengchang Xiang ORCID, Zhangjing Zhang, K. Mark Thomas, Rajamani Krishna, Banglin Chen
This paper is available in a repository.
This paper is available in a repository.

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Abstract

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 C(2)H(2)/C(2)H(4) separation. The potential application of these M'MOFs for the fixed bed pressure swing adsorption (PSA) separation of C(2)H(2)/C(2)H(4) 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.