Structure and characterization of zero- to two-dimensional compounds built up of the sandwich-type clusters and transition-metal linkers

Journal Article · Tue Apr 15 00:00:00 EDT 2008 · Journal of Solid State Chemistry

DOI:https://doi.org/10.1016/j.jssc.2008.01.021· OSTI ID:21128238

Zhiming, Zhang; Shuang, Yao ^[1]; Chao, Qin; Yanfei, Qi ^[1]; Yangguang, Li ^[1]; Clerac, Rodolphe ^[2]

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1. Key Laboratory of Polyoxometalate Science of Ministry of Education, Department of Chemistry, Northeast Normal University, Renmin Street No. 5268, Changchun, Jinlin 130024 (China)
2. Universite Bordeaux 1, CNRS, Centre de Recherche Paul Pascal (CRPP)-UPR 8641, 115 avenue du Dr. A. Schweitzer, 33600 Pessac (France)

Five new heteropolyoxotungstates K{sub 2}Na{sub 2}Mn{sub 2}(H{sub 2}O){sub 12}[Mn{sub 2}(H{sub 2}O){sub 10}Mn{sub 4}(H{sub 2}O){sub 2}(XW{sub 9}O{sub 34}){sub 2}].18H{sub 2}O (X=Ge, 1; X=Si, 2), Na{sub 4}[Mn{sub 4}(H{sub 2}O){sub 18}Mn{sub 4}(H{sub 2}O){sub 2}(XW{sub 9}O{sub 34}){sub 2}].22H{sub 2}O (X=Ge, 3; X=Si, 4) and K{sub 3}Na{sub 5}[Mn{sub 2}(H{sub 2}O){sub 6}Mn{sub 4}(H{sub 2}O){sub 2}(SiW{sub 9}O{sub 34}){sub 2}].23.5H{sub 2}O (5) have been obtained by the routine synthetic reactions in aqueous solution. In 1 and 2, two isolated Mn{sup 2+} ions are covalently linked to the sandwich-type polyoxoanions [Mn{sub 4}(H{sub 2}O){sub 2}(B-{alpha}-XW{sub 9}O{sub 34}){sub 2}]{sup 12-} (X=Ge or Si) by two {mu}{sub 2}-oxygen atoms resulting in the disupporting sandwich-type polyoxometalates (POMs). Compounds 3 and 4 are built from the disupporting sandwich-type polyoxoanions 1 and 2, linked by additional four Mn{sup 2+} ions to construct a 1D ladder-like chain-like structure, which is rarely observed in the POM chemistry. Compound 5 represents the first example of the 2D structure consisting of the sandwich-type polyoxoanion [Mn{sub 4}(H{sub 2}O){sub 2}(SiW{sub 9}O{sub 34}){sub 2}]{sup 12-} and the binuclear {l_brace}Mn{sub 2}(H{sub 2}O){sub 6}{r_brace}{sup 4+} group. The magnetic studies of compounds 1, 4 and 5 indicate that the antiferromagnetic interactions are predominant in the three compounds between Mn(II) metal ions. - Graphical abstract: Five new compounds, from zero- to two-dimensional built up of the sandwich-type clusters and transition-metal linkers, have been obtained by the routine synthetic reactions in aqueous solution. This polyoxoanion framework architecture represents the first example of the 2D structure consisting of the sandwich-type polyoxoanion [Mn{sub 4}(H{sub 2}O){sub 2}(SiW{sub 9}O{sub 34}){sub 2}]{sup 12-} and the binuclear {l_brace}Mn{sub 2}(H{sub 2}O){sub 6}{r_brace}{sup 4+} group. Display Omitted.

• OSTI ID: 21128238
• Journal Information: Journal of Solid State Chemistry, Vol. 181, Issue 4; Other Information: DOI: 10.1016/j.jssc.2008.01.021; PII: S0022-4596(08)00031-5; Copyright (c) 2008 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved; Country of input: International Atomic Energy Agency (IAEA); ISSN 0022-4596
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
ANTIFERROMAGNETISM
AQUEOUS SOLUTIONS
GERMANIDES
MANGANESE COMPOUNDS
MANGANESE IONS
MOLECULAR CLUSTERS
MOLECULAR STRUCTURE
POTASSIUM COMPOUNDS
SILICIDES
SODIUM COMPOUNDS
TUNGSTEN COMPOUNDS