A porous Zn(ii)-coordination polymer based on a tetracarboxylic acid exhibiting selective CO2 adsorption and iodine uptake. Issue 31 (23rd July 2020)

• Record Type: Journal Article
• Authors: Arici, Mürsel; Alp Arici, Tuğba; Demiral, Hakan; Taş, Murat; Yeşilel, Okan Zafer
• Is Part Of: Dalton transactions. Volume 49:Issue 31(2020)
• Page Start: 10824
• Page End: 10831
• Publication Date: 2020-07-23
• Subjects: Chemistry, Inorganic -- Periodicals; Chemistry, Physical and theoretical -- Periodicals; Chemistry, Inorganic -- Periodicals; 546.05
• DOI: 10.1039/d0dt01875a
• Languages: English
• ISSNs: 1477-9226

Abstract

Abstract : A 3D porous Zn(ii )-coordination polymer with a sqc5381 net adsorbed selectively CO2 over N2 and CH4 at 273 K and also 19.99% and 30.26% iodine in solution and vapor phase. X-ray result and Raman spectra showed iodine units in the pores of framework. Abstract : A porous Zn(ii )-coordination polymer, namely {[Zn2 (μ8 -abtc)(betib)]·DMF} n (1 ), was solvothermally synthesized from 3, 3′, 5, 5′-azobenzenetetracarboxylate (abtc 4− ) and 1, 4-bis(2-ethylimidazol-1-yl)butane (betib) ligands and {[Zn2 (μ8 -abtc)(betib)]·H2 O} n (2 ) was obtained through the immersion of 1 in methanol. Compounds 1 and 2 were structurally characterized via numerous techniques. Both compounds displayed a 3D porous framework with a 3, 6-connected sqc5381 net. Compound 2a obtained at 140 °C from 2 exhibited gas and iodine adsorption properties. Interestingly, the compound adsorbed selectively CO2 with the uptake capacity of 54.02 cm 3 g −1 (13.26%) over N2 (5.43 cm 3 g −1 ) and CH4 (14.53 cm 3 g −1 ) at 273 K. The compound also adsorbed iodine with the weights of 19.99% and 30.26% in solution and vapor phases, respectively. The single crystal X-ray result and Raman spectra showed the presence of iodine units in the pores of the framework.