| Literature DB >> 26931312 |
Ali Haider1, Masooma Ibrahim1, Bassem S Bassil1,2, Akina M Carey1, Anh Nguyen Viet1, Xiaolin Xing1, Wassim W Ayass1, Juan F Miñambres1, Rongji Liu3, Guangjin Zhang3, Bineta Keita4, Valeriu Mereacre5, Annie K Powell5,6, Kamil Balinski7, Alpha T N'Diaye8, Karsten Küpper7, Han-Yi Chen9,10, Ulrich Stimming9,10,11, Ulrich Kortz1.
Abstract
The two 16-manganese-containing, Keggin-based 36-tungsto-4-silicates [Mn(III)10Mn(II)6O6(OH)6(PO4)4(A-α-SiW9O34)4](28-) (1) and [Mn(III)4Mn(II)12(OH)12(PO4)4(A-α-SiW9O34)4](28-) (2) have been prepared by reaction of the trilacunary Keggin precursor [A-α-SiW9O34](10-) with either Mn(OOCCH3)3·2H2O (for 1) or MnCl2·4H2O (for 2), in aqueous phosphate solution at pH 9. Polyanions 1 and 2 comprise mixed-valent, cationic {Mn(III)10Mn(II)6O6(OH)6}(24+) and {Mn(III)4Mn(II)12(OH)12}(24+) cores, respectively, encapsulated by four phosphate groups and four {SiW9} units in a tetrahedral fashion. Both polyanions were structurally and compositionally characterized by single-crystal XRD, IR, thermogravimetric analysis, and X-ray absorption spectroscopy. Furthermore, studies were performed probing the magnetic, electrochemical, oxidation catalytic, and Li-ion battery performance of 1 and 2.Entities:
Year: 2016 PMID： 26931312 DOI： 10.1021/acs.inorgchem.5b02503
Source DB: PubMed Journal: Inorg Chem ISSN： 0020-1669 Impact factor: 5.165