Results 191 to 200 of about 11,067 (216)
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Iron Polyoxometalate Single‐Molecule Magnets
Angewandte Chemie, 2009AbstractWolframate mit Eisenfüllung: Zwei neue Polyoxowolframate mit paramagnetischen Eisen(III)‐Ionen (siehe Struktur, W blau, Fe gelb, O rot) haben Grundzustände mit S=15/2 und S=5. Beide Verbindungen sind Einzelmolekülmagnete, und die Hexaeisen‐Spezies zeigt eine starke Hysterese (siehe Diagramm) sowie Quantentunneleffekte bei tiefen Temperaturen ...
Compain +9 more
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The fascinating polyoxometalates
ChemTexts, 2021After touching the history of polyoxometalate (POM) chemistry, the basics of isopolyoxometalates (IPOM) and heteropolyoxometalates (HPOM) are discussed. The main focus is placed on molybdenum- and tungsten-containing IPOM and HPOM. The HPOM are presented based on the coordination of the ‘hetero’atom: tetrahedral (Keggin and Wells–Dawson structures ...
Hans-Joachim Lunk, Hans Hartl
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Towards Polyoxometalate‐Integrated Nanosystems
Chemistry – A European Journal, 2006AbstractPolyoxometalates represent a diverse range of molecular clusters with an almost unmatched range of physical properties and the ability to form structures that can bridge several length scales. The new building block principles that have been discovered are beginning to allow the design of complex clusters with desired properties and structures;
De-Liang, Long, Leroy, Cronin
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Noble Metals in Polyoxometalates
Angewandte Chemie International Edition, 2012AbstractPolyoxometalates containing noble metal ions, such as ruthenium, osmium, rhodium, palladium, platinum, silver and gold, are a structurally diverse class of compounds. They include both classical heteropolyanions (vanadates, molybdates, tungstates) in which noble metals are present as heteroatoms, as well as the recently discovered class of ...
Natalya V, Izarova +2 more
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Platinum‐Containing Polyoxometalates
Angewandte Chemie, 2008Späte Übergangsmetalle mit terminalen Oxoliganden: Zu dem von Lee, Kortz et al. beschriebenen Pt‐haltigen Polyoxovanadat [H2PtIVV9O28]5− werden kritische Anmerkungen, Analysen und Antworten vorgestellt. Außerdem wird abgeleitet, dass eine terminale Platin‐Sauerstoff‐Verbindung, die eine dieser Gruppen an anderer Stelle vorgestellt hat und die im ...
Rui Cao +5 more
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Targeted Delivery of Polyoxometalate Nanocomposites
Small, 2011AbstractPolyoxometalate/carboxymethyl chitosan nanocomposites with an average diameter of 130 nm are synthesized and labeled with fluorescein isothiocyanate (FITC) for a combined drug‐carrier and cellular‐monitoring approach. [Eu(β2‐SiW11O39)2]13−/CMC nanospheres as a representative example do not display cytotoxicity for POM concentrations up to 2 mg ...
Geisberger, G +4 more
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Die „klassischen“ Polyoxometallate
Chemie in unserer Zeit, 2018ZusammenfassungDie Kombination von Röntgenbeugungs‐ und Röntgenstreuungsmethoden sowie massenspektrometrischen, spektroskopischen und computergestützten Techniken ermöglicht heutzutage vielseitige Einblicke in die Struktur und Eigenschaften der POM in der festen Phase und in Lösung.
Ricarda Pütt +2 more
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Polyoxometalate functionalized architectures
Coordination Chemistry Reviews, 2020Abstract Polyoxometalates (POMs) are interesting clusters that attracted great attention due to their remarkable structures and intriguing applications. The incorporation of POMs into crystalline architectures generates functional hybrid materials because such materials combine the merits of POMs and architectures together, thus deriving special ...
Jia-Xin Liu +4 more
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2013
Polyxometalate-Protected Nanoparticles: Synthesis, Structure and Catalysis Physical Chemistry Opportunities Offered by Polyoxometalate Macroions Directed Assembly of Polyoxometalates Across Length Scales: From Macromolecules to Microsystems and Ichells Polyoxometalates as Ligands for Functional Lanthanoid Complexes Magnetic Polyoxometalates Magnetism ...
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Polyxometalate-Protected Nanoparticles: Synthesis, Structure and Catalysis Physical Chemistry Opportunities Offered by Polyoxometalate Macroions Directed Assembly of Polyoxometalates Across Length Scales: From Macromolecules to Microsystems and Ichells Polyoxometalates as Ligands for Functional Lanthanoid Complexes Magnetic Polyoxometalates Magnetism ...
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