Metal-organic frameworks with a sulfur-rich heterocycle: synthesis, gas adsorption properties, and metal exchange

IF 3.5 3区化学 Q2 CHEMISTRY, INORGANIC & NUCLEAR Dalton Transactions Pub Date : 2024-09-20 DOI:10.1039/d4dt02209b

Vadim A. Dubskikh, Anna Lysova, Konstantin A Kovalenko, Denis G. Samsonenko, Danil N. Dybtsev, Vladimir P Fedin

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引用次数: 0

Abstract

Three three-dimensional (3D) metal-organic frameworks [M₂(ttdc)₂(dabco)] (М = Zn(II), 1-Zn; Cu(II), 1-Cu; Zn/Cu, 1-ZnCu) based on thieno[3,2-b]thiophene-2,5-dicarboxylate (ttdc^2–) were synthesized and characterized by a complex of physicochemical methods (single crystal X-ray diffraction, powder X-ray diffraction, chemical, thermogravimetric analyses and IR spectroscopy). 1-Cu demonstrated permanent porosity (V_pore = 0.790 cm³·g^–1, S_BET = 1725 m²⋅g⁻¹) and significant CO₂, CH₄, C₂H₂, C₂H₄ and C₂H₆ gas uptakes at ambient conditions. The adsorption selectivities for gas mixtures, calculated by IAST, were 10.8 (10.7), 14.6 (9.4), 1.7 (1.6) and 1.5 (1.6) for the equimolar gas mixture composition CO₂/N₂, C₂H₆/CH₄, C₂H₆/C₂H₄ and C₂H₆/C₂H₂ at 1 bar and 273 K (298 K), respectively. The mixed-metal compound 1-ZnCu was prepared by a crystal-to-crystal ion exchange metathesis reaction from 1-Zn with 52% degree of ion substitution, confirmed by the energy-dispersive X-ray spectroscopy, optical microcopy and single crystal X-ray diffraction analysis.

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来源期刊

Dalton Transactions 化学-无机化学与核化学

CiteScore

6.60

自引率

7.50%

发文量

1832

审稿时长

1.5 months

期刊介绍： Dalton Transactions is a journal for all areas of inorganic chemistry, which encompasses the organometallic, bioinorganic and materials chemistry of the elements, with applications including synthesis, catalysis, energy conversion/storage, electrical devices and medicine. Dalton Transactions welcomes high-quality, original submissions in all of these areas and more, where the advancement of knowledge in inorganic chemistry is significant.