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A Coordination Network Featuring Two Distinct Copper(II) Coordination Environments for Highly Selective Acetylene Adsorption

Chong, Magdalene W.S.; Argent, Stephen P.; Moreau, Florian; Trenholme, William J. F.; Morris, Christopher G.; Lewis, William; Easun, Timothy L.; Schröder, Martin

A Coordination Network Featuring Two Distinct Copper(II) Coordination Environments for Highly Selective Acetylene Adsorption Thumbnail


Authors

Magdalene W.S. Chong

Florian Moreau

William J. F. Trenholme

Christopher G. Morris

William Lewis

Timothy L. Easun

Martin Schröder



Abstract

Single crystals of 2D coordination network {Cu2L2 ⋅ (DMF)3(H2O)3}n (1-DMF) were prepared by reaction of commercial reagents 3-formyl-4-hydroxybenzoic acid (H2L) and Cu(NO3)2 in dimethylformamide (DMF). The single-crystal structure shows two distinct Cu(II) coordination environments arising from the separate coordination of Cu(II) cations to the carboxylate and salicylaldehydato moieties on the linker, with 1D channels running through the structure. Flexibility is exhibited on solvent exchange with ethanol and tetrahydrofuran, while porosity and the unique overall connectivity of the structure are retained. The activated material exhibits type I gas sorption behaviour and a BET surface area of 950 m2 g−1 (N2, 77 K). Notably, the framework adsorbs negligible quantities of CH4 compared with CO2 and the C2Hn hydrocarbons. It exhibits exceptional selectivity for C2H2/CH4 and C2H2/C2Hn, which has applicability in separation technologies for the isolation of C2H2.

Citation

Chong, M. W., Argent, S. P., Moreau, F., Trenholme, W. J. F., Morris, C. G., Lewis, W., …Schröder, M. (2022). A Coordination Network Featuring Two Distinct Copper(II) Coordination Environments for Highly Selective Acetylene Adsorption. Chemistry - A European Journal, https://doi.org/10.1002/chem.202201188

Journal Article Type Article
Acceptance Date Jun 23, 2022
Online Publication Date Jul 28, 2022
Publication Date Jul 28, 2022
Deposit Date Aug 16, 2022
Publicly Available Date Aug 16, 2022
Journal Chemistry - A European Journal
Print ISSN 0947-6539
Electronic ISSN 1521-3765
Publisher Wiley
Peer Reviewed Peer Reviewed
DOI https://doi.org/10.1002/chem.202201188
Keywords General Chemistry; Catalysis; Organic Chemistry
Public URL https://nottingham-repository.worktribe.com/output/9411196
Publisher URL https://chemistry-europe.onlinelibrary.wiley.com/doi/10.1002/chem.202201188

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