Heteropoly complexes of lanthanum with unsaturated heteropolytungstate ligands

A new inorganic-organic hybrid compound, [{Cu(phen)2}2(H4W12O40)], was synthesized, and its crystal structure was determined. The Keggin anion H4W12O40 4− was grafted with two coordination units {Cu(phen)2}, forming an electrically neutral molecule. The antibacterial activity of several polyoxometalate compounds with different anionic structures including the new compound was studied. The results show that the compound 1 can inhibit the growth of Enterococcus faecalis FA2 strains and that antibacterial activity of the polyoxometalate compounds is dependent with component elements of POM but is less relative with the anion structures.

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“…Compounds 2–6 were prepared in accordance with the methods in Refs. [36–39] and characterized by the IR spectrograph and TGA.…”

Section: Methodsmentioning

confidence: 99%

Synthesis and Antibacterial Activity of Polyoxometalates with Different Structures

Zhang

Yuan

et al. 2018

Bioinorganic Chemistry and Applications

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“…K 13 [Eu(SiW 11 O 39 ) 2 ] (EuSiW) was synthesized and purified according to [18]. 3-Aminopropyltriethoxysilane (APS) and polyacrylamide (MW: 10,000) were obtained from Aldrich.…”

Section: Methodsmentioning

confidence: 99%

Self-assembled multilayer films of europium-substituted polyoxometalate and their luminescence properties

Wang

Zheng

Wang

et al. 2004

Journal of Alloys and Compounds

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“…Besides yttrium atoms, all the trivalent lanthanides, cerium(IV) and terbium(IV), and the tetravalent actinides (Th to Bk) have also been incorporated in such complexes. Although not all possible combinations of Ln/An and mla have been exhausted, the heteropolyanion ligands now include [XW 11 O 39 ] n - (X = P − As ,,,− Si ,,,,,− Ge ,,,− B, ,,,,,− Ga, Zr, Cu), α 1 -[P 2 W 17 O 61 ] 10- , − α 2 -[P 2 W 17 O 61 ] 10- , ,,− ,− α 2 -[As 2 W 17 O 61 ] 10- , ,,− [XMo 11 O 39 ] n - (X = P, ,− As, Si, ,…”

Section: {Xw11}2 or {X2w17}2: {Mx2w22} And {Mx4w34}mentioning

confidence: 99%

Polyoxometalates: Very Large ClustersNanoscale Magnets

et al. 1998

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I. Introduction 239 II. General Aspects 241 III. Vanadates 242 A. {V 19 } Clusters 242 B. {Mn 2 V 22 } with Two Decavanadate-Type Moieties 242 C. Structures Built up from {OdVO 4 } Pyramids: {V 22 } and {V 34 } 243 IV. Niobates 244 A. The {Al 2 Eu 6 Nb 30 } Cluster 244 V. Molybdates 244 A. Clusters with {Mo 7 } Units: {Eu 4 Mo 29 } and {Pr 8 Mo 58 } 245 B. Clusters with Capped R-Keggin Cores: {Mo 16 V 14 } and {(Mo 8 V 7 ) n } 245 C. Clusters Built up by Lacunary Keggin Fragments: {As 8 Mo 24 } and {As 10 Mo 24 } 246 D. Clusters with an -Keggin-Type Core: {Mo 37 }, {Mo 42 }, and {Mo 43 } 246 E. Clusters Containing {Mo 8 } Moieties: {Mo 36 }, {Mo 57 }, and {Mo 154 } 249 1. {Mo 36 } 249 2. {Mo 57 } 250 3. {Mo 154 (NO) 14 } and Comparison to {Mo 57 } 251 4. Beyond the {Mo 154 } Level 252 VI. Tungstates 253 A. Clusters Incorporating Different Numbers of Monovacant Lacunary {XW 11 }-Type Building Blocks 253 1. {XW 11 }: {Si 2 W 23 } 253 2. {XW 11 } 2 or {X 2 W 17 } 2 : {MX 2 W 22 } and {MX 4 W 34 } 253 3. {XW 11 } 2 : {XW 11 } 2 {Mo 3 S 4 } 2 255 4. {XW 11 } 3 : {B 3 W 39 } 255 B. Clusters Incorporating Different Types of Trivacant Lacunary Building Blocks 255 1. [XW 9 O 34 ] n-(A-or B-Type) 255 2. [X III W 9 O 33 ] 9-256 3. B-Type [P 2 W 15 O 56 ] 12-: {M 4 P 4 W 30 } and {P 4 M 6 W 32 } 259 C. Clusters Incorporating Pentavacant Lacunary Building Blocks 260 1. {Sb 9 W 21 } and Related Anions 260 D. Clusters Incorporating Hexavacant Lacunary Building Blocks 260 1. {P 4 W 24 } and {P 8 W 48 } 260 2. {P 5 W 30 } 261 E. Mixed-Valence Clusters Derived from Heteropoly Browns {XW 20 } 261 F. Structurally Uncharacterized Clusters 261 VII. Magnetism of Polyoxometalates 261 A. Polyoxovanadates(IV) 263 B. Mixed-Valence Clusters 266 C. Polyoxometalates as Ligands to Magnetic Clusters 266 VIII. Outlook 268 IX. Acknowledgments 268 X. Note Added in Proof 268 XI. References 268I can hardly doubt that when we have some control of the arrangement of things on a small scale we will get an enormously greater range of possible properties that substances can have.

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Heteropoly complexes of lanthanum with unsaturated heteropolytungstate ligands

Cited by 17 publications

References 19 publications

Synthesis and Antibacterial Activity of Polyoxometalates with Different Structures

Synthesis and Antibacterial Activity of Polyoxometalates with Different Structures

Self-assembled multilayer films of europium-substituted polyoxometalate and their luminescence properties

Polyoxometalates: Very Large ClustersNanoscale Magnets

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