Title |
Large Magnetic Polyoxometalates Containing the Cobalt Cubane ‘[CoIIICo3II(OH)3(H2O)6–m(PW9O34)]3−' (m = 3 or 5) as a Subunit
|
---|---|
Published in |
Frontiers in Chemistry, June 2018
|
DOI | 10.3389/fchem.2018.00231 |
Pubmed ID | |
Authors |
Yan Duan, Juan M. Clemente-Juan, Carlos Giménez-Saiz, Eugenio Coronado |
Abstract |
A synthetic procedure is presented to construct new magnetic polyoxometalates (POMs) containing one or two subunits of '[CoIIICo 3 II (OH)3(H2O)6-m(PW9O34)]3-' (m = 3 or 5). The substitution of the water ligands present in these subunits by oxo or hydroxo ligands belonging to other POM fragments, gives rise to four, larger POM anions: [Co7(OH)6(H2O)6(PW9O34)2]9- (2), [Co7(OH)6(H2O)4(PW9O34)2] n 9 n - (2'), [Co11(OH)5(H2O)5(W6O24)(PW9O34)3]22- (3) and [{Co4(OH)3(H2O)(PW9O34)}2{K⊂(H2W12O41)2}{Co(H2O)4}2]17- (4). The crystal structures, magnetic characterization and stabilities in aqueous solutions of these POM derivatives are also presented. |
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