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Isomeric Scandium–Organic Frameworks with High Hydrolytic Stability and Selective Adsorption of Acetylene Full article

Journal Inorganic Chemistry
ISSN: 0020-1669 , E-ISSN: 1520-510X
Output data Year: 2021, Volume: 60, Number: 5, Pages: 2996-3005 Pages count : 10 DOI: 10.1021/acs.inorgchem.0c03159
Authors Barsukova Marina O. 1,2 , Kovalenko Konstantin A. 2 , Nizovtsev Anton S. 2 , Sapianik Aleksandr A. 1,2 , Samsonenko Denis G. 2 , Dybtsev Danil N. 2 , Fedin Vladimir P. 2
Affiliations
1 Functional Materials, Design, Discovery & Development, Advanced Membrane & Porous Materials Center, King Abdullah University of Science and Technology, 23955-6900 Thuwal, Kingdom of Saudi Arabia
2 Nikolaev Institute of Inorganic Chemistry, Siberian Branch of the Russian Academy of Sciences, 630090 Novosibirsk, Russia

Abstract: Two solvent-controlled topological isomers of scandium–organic frameworks [Sc(Hpzc)(pzc)]·DMF·2H2O (1·DMF·2H2O) and [Sc(Hpzc)(pzc)]·DMA·4H2O (2·DMA·4H2O) were synthesized using 2,5-pyrazinedicarboxylate (pzc2–) (DMF = dimethylformamide; DMA = dimethylacetamide). Despite the isomeric nature of the obtained metal–organic frameworks (MOFs), they possess different structural features and unique adsorption properties toward gases and iodine. The compound 1 has widely spread among MOF structures a dia topology with ultranarrow channels, which together with inner surface functionalization leads to enhanced CO2 adsorption and high selectivity factors in CO2/CH4 and CO2/N2 gas mixtures (25.9 and 35.6, respectively, 1/1 v/v). Moreover, a rare preferable adsorption of CO2 over C2H2 was demonstrated. The biporous isomeric framework 2 has a crb topology inherent in zeolites. A remarkable adsorption affinity to C2H2 with the ideal adsorbed solution theory selectivity factor of 127.1 for a C2H2/C2H4 mixture (1/99 v/v) was achieved for 2. Both compounds have exceptional chemical stability in a wide range of pH from acidic to basic media.
Cite: Barsukova M.O. , Kovalenko K.A. , Nizovtsev A.S. , Sapianik A.A. , Samsonenko D.G. , Dybtsev D.N. , Fedin V.P.
Isomeric Scandium–Organic Frameworks with High Hydrolytic Stability and Selective Adsorption of Acetylene
Inorganic Chemistry. 2021. V.60. N5. P.2996-3005. DOI: 10.1021/acs.inorgchem.0c03159 WOS Scopus OpenAlex
Dates:
Submitted: Oct 26, 2020
Published online: Feb 15, 2021
Published print: Mar 1, 2021
Identifiers:
Web of science: WOS:000625446000018
Scopus: 2-s2.0-85101575792
OpenAlex: W3130445782
Citing:
DB Citing
OpenAlex 22
Scopus 22
Web of science 22
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