Magneto-structural properties of carbonato-bridged copper(ii) complexes: fixation of atmospheric CO2?
New Journal of Chemistry Pub Date: 2015-03-31 DOI: 10.1039/C5NJ00285K
Abstract
Two carbonato-bridged Cu(II) complexes, [Cu3(dmMePEA)3(μ3-CO3)(ClO4)3]ClO4 (1) and [Cu2(iptren)2(μ2-CO3)](ClO4)2·H2O (2), (dmMePEA = N-methyl(2-(2-pyridyl)ethyl)-(4-methoxy-3,5-dimethyl-2-pyridylmethyl)amine, iptren = tris[2-(isopropylamino)ethyl]amine) were synthesized through the atmospheric fixation of CO2. The complexes were structurally and magnetically characterized. Tris(bidentate) and bis(monodentate) carbonato-bridge bonding modes were found in the two complexes. Variable temperature magnetic susceptibility (2–300 K) revealed weak bulk ferromagnetic coupling in complex 1 (J = 1.1 cm?1) and very strong antiferromagnetic coupling in 2 (J = ?167.7 cm?1). The magnetic properties of the two complexes are discussed as a function of their structure parameters and in relation to those of other related complexes of similar carbonato-bridging bonding modes.
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Journal Name：New Journal of Chemistry
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CAS no.: 89640-58-4
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