Separation of Light Hydrocarbons through Selective Molecular Exclusion by a Microporous Metal–Organic Framework
- Department of Chemistry and Chemical Biology Rutgers University Piscataway NJ 08854 USA
- Department of Chemistry and Chemical Biology Rutgers University Piscataway NJ 08854 USA, Department of Chemistry Institute of Functional Material Chemistry Key Lab of Polyoxometalate Science of Ministry of Education Northeast Normal University Changchun Jilin 130024 P. R. China
Abstract [Zn 2 (sdc) 2 (bpe)] (compound 1 , sdc=4,4′‐stilbenedicarboxylate, bpe=1,2‐bis(4‐pyridyl)ethane)), a doubly interpenetrated, pillared‐layer microporous metal–organic framework has been solvothermally synthesized and structurally characterized by single‐crystal X‐ray diffraction. The structure features a common Zn 2 (COO) 4 paddle‐wheel building unit. Compound 1 undergoes structural change upon solvent removal. The activated phase (compound 2 ) displays permanent porosity, excellent thermal/moisture stability, and interesting hydrocarbon adsorption properties. Gas adsorption experiments show that compound 1 selectively adsorbs saturated/unsaturated C 2 hydrocarbons but excludes C 3 and C 4 hydrocarbons at room temperature. We have collected single‐component adsorption isotherms of six light hydrocarbons and calculated adsorption selectivities of various binary hydrocarbon mixtures by ideal adsorbed solution theory (IAST). The results show that compound 1 possesses remarkably high selectivity towards C 2 over C 3 /C 4 hydrocarbons and the separation is achieved by selective molecular exclusion.
- Sponsoring Organization:
- USDOE
- OSTI ID:
- 1401445
- Journal Information:
- ChemPlusChem, Journal Name: ChemPlusChem Vol. 81 Journal Issue: 8; ISSN 2192-6506
- Publisher:
- Wiley Blackwell (John Wiley & Sons)Copyright Statement
- Country of Publication:
- Germany
- Language:
- English
Web of Science
Similar Records
Ancillary ligand-assisted assembly of C{sub 3}-symmetric 4,4′,4″-nitrilotribenzoic acid with divalent Zn{sup 2+} ions: Syntheses, topological structures, and photoluminescence properties
Topological evolution and photoluminescent properties of a series of divalent zinc-based metal–organic frameworks tuned via ancillary ligating spacers