title: Two novel trivacant Keggin-type polytungstates supported manganese carbonyl derivatives synthesized by degradation of metastable [γ-XW10O36]8- (X = Ge(IV), Si(IV)).
abstract: Two novel trivacant Keggin-type polyoxometallate-based manganese carbonyl derivatives K(8)[(OC)(3)Mn(A-α-H(2)GeW(9)O(34))]·10H(2)O (1) and K(8)[(OC)(3)Mn(A-α-H(2)SiW(9)O(34))]·11H(2)O (2) have been synthesized by degradation of the metastable [γ-XW(10)O(36)](8-) (X = Ge(IV), Si(IV)) in CH(3)CN-H(2)O solvent (1 : 2, vol.) and structurally characterized by elemental analyses, IR spectra, thermogravimetric analysis, and single-crystal X-ray diffraction. X-ray diffraction analyses indicate that 1 and 2 are isomorphic and consist of a [(OC)(3)Mn](+) group and a trivacant [A-α-H(2)XW(9)O(34)](8-) fragment, which exhibit the first examples of trivacant Keggin-type metal carbonyl derivatives. Additionally, the electrocatalytic properties of both for NO(2)(-) oxidation have been investigated.
authors.affiliation: Institute of Molecular and Crystal Engineering, College of Chemistry and Chemical Engineering, Henan University, Kaifeng, Henan 475004, P. R. China.
authors.forename: Juan
authors.initials: J
authors.lastname: Zhao
authors.forename: Junsheng
authors.initials: J
authors.lastname: Wang
authors.forename: Junwei
authors.initials: J
authors.lastname: Zhao
authors.forename: Pengtao
authors.initials: P
authors.lastname: Ma
authors.forename: Jingping
authors.initials: J
authors.lastname: Wang
authors.forename: Jingyang
authors.initials: J
authors.lastname: Niu