A tetranuclear Er(III)-based cluster with bifunctional properties: Efficient conversion of CO2 and slow magnetic relaxation behavior
A new Er4 cluster 1 displays slow magnetic relaxation behavior and shows high catalytic activity of the cycloaddition reaction of CO2 and epichlorohydrin under mild conditions. [Display omitted] •A new bifunctional tetranuclear Er(III)-based cluster 1 have been synthesized and structurally character...
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Published in | Inorganica Chimica Acta Vol. 556; p. 121560 |
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Main Authors | , , , , , |
Format | Journal Article |
Language | English |
Published |
Elsevier B.V
01.10.2023
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Subjects | |
Online Access | Get full text |
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Summary: | A new Er4 cluster 1 displays slow magnetic relaxation behavior and shows high catalytic activity of the cycloaddition reaction of CO2 and epichlorohydrin under mild conditions.
[Display omitted]
•A new bifunctional tetranuclear Er(III)-based cluster 1 have been synthesized and structurally characterized.•1 displays slow magnetic relaxation behavior under Hdc = 0 Oe field.•Cluster 1 exhibits high catalytic activity and can effectively catalyze the cycloaddition reaction of CO2 with various epoxides.
A new Er4 cluster [Er4(NO3)2(acac)4(L)2(CH3OH)2]·2CH3CN (1) (H4L = (E)-2-(hydroxymethyl)-2-(((2-hydroxynaphthalen-1-yl)methylene)amino)propane-1,3-diol, and Hacac = acetylacetone) were synthesized by employing a polydentate Schiff-base ligand (H4L) and a β-diketonate co-ligand and further characterized structurally. Alternating current (ac) magnetic susceptibility measurements indicated that cluster 1 shows slow relaxation of magnetization behavior. More importantly, cluster 1 shows high catalytic activity of the cycloaddition reaction of CO2 and epichlorohydrin under mild conditions; and cluster 1 as heterogenous catalyst can be reused at least three times without any obvious loss in catalytic activity. It is worth mentioning that cluster 1 is a rare bifunctional Ln(III)-based material for both molecular based magnetic material and heterogenous catalyst. |
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ISSN: | 0020-1693 1873-3255 |
DOI: | 10.1016/j.ica.2023.121560 |