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Highly selective room temperature acetylene sorption by an unusual triacetylenic phosphine MOF

Abstract

The new ligand tris(p-carboxyphenylethynyl)phosphine (P{C≡CC6H5-4-CO2H}3) was used to synthesize a permanently porous Mn(II)-based acetylenic phosphine coordination material, PCM-48. This triply-interpenetrated MOF contains 1-D microchannels that are decorated with electron-rich and adsorbate-accessible acetylenic moieties and phosphine lone pairs. PCM-48 has a moderate room-temperature C2H2 adsorption capacity (25.54 cm3 g─1) and displays high separation selectivities for C2H2 over CH4 (C2H2/CH4 = 23.3), CO2 (C2H2/CO2 = 4.3), and N2 (C2H2/N2 = 76.9) at 296 K.

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Publication details

The article was received on 06 Jul 2018, accepted on 10 Aug 2018 and first published on 10 Aug 2018


Article type: Communication
DOI: 10.1039/C8CC05402A
Citation: Chem. Commun., 2018, Accepted Manuscript
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    Highly selective room temperature acetylene sorption by an unusual triacetylenic phosphine MOF

    J. Reynolds III, K. M. Walsh, B. Li, P. Kunal, B. Chen and S. M. Humphrey, Chem. Commun., 2018, Accepted Manuscript , DOI: 10.1039/C8CC05402A

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