A Selenophene-Incorporated Metal–Organic Framework for Enhanced CO2 Uptake and Adsorption Selectivity

A Selenophene-Incorporated Metal–Organic Framework for Enhanced CO2 Uptake and Adsorption Selectivity Full article

Journal

Molecules
ISSN: 1420-3049

Output data

Year: 2020, Volume: 25, Number: 19, Article number : 4396, Pages count : 12 DOI: 10.3390/molecules25194396

Authors

Demakov Pavel A. ^1,2 , Volynkin Sergey S. ¹ , Samsonenko Denis G. ^1,2 , Fedin Vladimir P. ^1,2 , Dybtsev Danil N. ^1,2

Affiliations

1	Nikolaev Institute of Inorganic Chemistry, Siberian Branch of the Russian Academy of Sciences, Novosibirsk 630090, Russia
2	Department of Natural Sciences, Novosibirsk State University, 2 Pirogova St., Novosibirsk 630090, Russia

A new metal–organic coordination polymer [Zn2(sedc)2(dabco)] (1se; sedc2− = selepophene-2,5-dicarboxylate; dabco = 1,4-diazabicyclo[2.2.2]octane) was synthesized and characterized by single-crystal X-ray diffraction analysis. This MOF is based on {Zn2(OOCR)4N2} paddle wheels and is isoreticular to the family of [Zn2(bdc)2(dabco)] derivatives (1b; bdc2− = 1,4-benzenedicarboxylate) with pcu topology. The gas adsorption measurements revealed that 1se shows a 15% higher CO2 volumetric uptake at 273 K and 28% higher CO2 uptake at 298 K (both at 1 bar) compared to the prototypic framework 1b. Methane and nitrogen adsorption at 273 K was also investigated, and IAST calculations demonstrated a pronounced increase in CO2/CH4 and CO2/N2 selectivity for 1se, compared with 1b. For example, the selectivity factor for the equimolar CO2/CH4 gas mixture at 1 bar = 15.1 for 1se and 11.9 for 1b. The obtained results show a remarkable effect of the presence of selenium atom on the carbon dioxide affinity in the isoreticular metal–organic frameworks with very similar geometry and porosity.

Demakov P.A. , Volynkin S.S. , Samsonenko D.G. , Fedin V.P. , Dybtsev D.N.
A Selenophene-Incorporated Metal–Organic Framework for Enhanced CO2 Uptake and Adsorption Selectivity
Molecules. 2020. V.25. N19. 4396 :1-12. DOI: 10.3390/molecules25194396 WOS Scopus РИНЦ OpenAlex

Submitted:	Sep 2, 2020
Published print:	Sep 24, 2020

Web of science:	WOS:000587251000001
Scopus:	2-s2.0-85092056709
Elibrary:	45247559
OpenAlex:	W3088527254

DB	Citing
Web of science	16
Scopus	17
Elibrary	19
OpenAlex	17