Issue 71, 2018

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

Abstract

The new ligand tris(p-carboxyphenylethynyl)phosphine (P{C[triple bond, length as m-dash]CC6H4-4-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 gāˆ’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.

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

Supplementary files

Article information

Article type
Communication
Submitted
06 Jul 2018
Accepted
10 Aug 2018
First published
10 Aug 2018

Chem. Commun., 2018,54, 9937-9940

Author version available

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

J. E. Reynolds, K. M. Walsh, B. Li, P. Kunal, B. Chen and S. M. Humphrey, Chem. Commun., 2018, 54, 9937 DOI: 10.1039/C8CC05402A

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