title: 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.
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.
authors.affiliation: Department of Chemistry, University of Texas at San Antonio, 78249-0698, United States.
authors.forename: Madhab C
authors.initials: MC
authors.lastname: Das
authors.forename: Qunsheng
authors.initials: Q
authors.lastname: Guo
authors.forename: Yabing
authors.initials: Y
authors.lastname: He
authors.forename: Jaheon
authors.initials: J
authors.lastname: Kim
authors.forename: Cong-Gui
authors.initials: CG
authors.lastname: Zhao
authors.forename: Kunlun
authors.initials: K
authors.lastname: Hong
authors.forename: Shengchang
authors.initials: S
authors.lastname: Xiang
authors.forename: Zhangjing
authors.initials: Z
authors.lastname: Zhang
authors.forename: K Mark
authors.initials: KM
authors.lastname: Thomas
authors.forename: Rajamani
authors.initials: R
authors.lastname: Krishna
authors.forename: Banglin
authors.initials: B
authors.lastname: Chen
mesh_terms: D000327:Adsorption; D001592:Benzyl Alcohols / Q000302:isolation & purification*; D000440:Butanols / Q000302:isolation & purification*; D018360:Crystallography, X-Ray; D008024:Ligands; D008958:Models, Molecular; D009942:Organometallic Compounds / Q000138:chemical synthesis / Q000737:chemistry*; D000439:Pentanols / Q000302:isolation & purification*; D016062:Porosity; D013237:Stereoisomerism
chemical_list: D001592:Benzyl Alcohols; D000440:Butanols; D008024:Ligands; D009942:Organometallic Compounds; D000439:Pentanols; C043958:2-butanol; C002017:methylphenyl carbinol; C024999:n-pentanol