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Metal clusters

Activation of Nitric Oxide and Water by Transition Metal Clusters Relevant to Active Sites in Biology

Activation of Nitric Oxide and Water by Transition Metal Clusters Relevant to Active Sites in Biology

... [4Fe-4S] clusters); (ii) binding and activation of substrate at a single metal site with the auxiliary metals providing a specific structural or electronic environment for the substrate-binding ...

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ELECTRONIC STRUCTURES OF SOME METAL AND NON-METAL CLUSTERS AND METAL-LIGAND COMPLEXES: A DFT STUDY

ELECTRONIC STRUCTURES OF SOME METAL AND NON-METAL CLUSTERS AND METAL-LIGAND COMPLEXES: A DFT STUDY

... in metal and non-metal clusters and metal-ligand complexes which mostly find applications in the field of ...small metal clusters which seem promising to have applications in the ...

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Mixed protein templated luminescent metal clusters (Au and Pt) for H2O2 sensing

Mixed protein templated luminescent metal clusters (Au and Pt) for H2O2 sensing

... Inspired by the work of Shao et al., herein, we report a one-pot green process to synthesize noble metal clusters (Au and Pt) with different luminescences by using chicken egg white as templates at room ...

5

Image states in metal clusters

Image states in metal clusters

... Both image states are very similar in character and ex- tend extremely far into the vacuum having an almost insignificant overlap with the cluster. Most strikingly, however, is that the corresponding LDA states bear no ...

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The chemistry of phosphine anchored group VIIIA metal clusters on silica

The chemistry of phosphine anchored group VIIIA metal clusters on silica

... Obviously while species such as [08^C0.^] bear no relationship to a metal surface the putative model is structured on the periphery of ligand atoms, groups of atoms or molecules and a me[r] ...

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Transition Metal Clusters Supported by Multinucleating Ligand Frameworks as Models of Biological Active Sites

Transition Metal Clusters Supported by Multinucleating Ligand Frameworks as Models of Biological Active Sites

... This dissertation describes efforts to model biological active sites with small molecule clusters. The approach used took advantage of a multinucleating ligand to control the structure and nuclearity of the ...

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Vol 9, No 2 (2020)

Vol 9, No 2 (2020)

... such metal clusters can serve as efficient catalysts for a number of sol–gel technology processes that occur in inorganic as well as in organic silicate ...of metal oxides and metal ...

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Observation of shell effects in nanowires for the noble metals Cu, Ag, and Au

Observation of shell effects in nanowires for the noble metals Cu, Ag, and Au

... filling effects are also present in gold nanowires. In this pa- per we extend the study to the other two monovalent noble metals: silver and copper. The noble metal nanowires are more suitable for applications, ...

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Geometries and Electronic Structures by DFT Simulated Annealing Study of Some Noble Metal Small Size Clusters

Geometries and Electronic Structures by DFT Simulated Annealing Study of Some Noble Metal Small Size Clusters

... small clusters of group IB noble metals, ...Pt clusters lie between that of alkali metals and transition ...in metal clusters smaller than 2 nm in diameter ...

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Quantum properties of atomic-sized conductors

Quantum properties of atomic-sized conductors

... alkali metal contacts at contact diameters well above those for which the quan- tization peaks in the histograms are observed (see ...for metal clusters, and in the next section we will briefly ...

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Tetra­kis­(2,2′ bi­pyridine)­tetra μ3 hydro­xo di μ tri­fluoro­acetato tetracobalt(II) diiodide diaceto­nitrile monohydrate: a compound containing a tetranuclear `cubane' type cobalt(II) core

Tetra­kis­(2,2′ bi­pyridine)­tetra μ3 hydro­xo di μ tri­fluoro­acetato tetracobalt(II) diiodide diaceto­nitrile monohydrate: a compound containing a tetranuclear `cubane' type cobalt(II) core

... We are grateful for valuable discussions with Dr I. D. Brown on applications of the bond valence model to metal clusters.. We gratefully acknowledge the service provided by Dr Joseph Reibenspies and the ...

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Big Data Benchmarks of High Performance Storage Systems on Commercial Bare Metal Clouds

Big Data Benchmarks of High Performance Storage Systems on Commercial Bare Metal Clouds

... Amazon EC2 has a memory optimized server type (r5.24xlarge) with Intel Xeon 8175M processors running at 2.5 GHz, with a total of 48 hyper-threaded cores, 96 logical processors and recently added bare metal server ...

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A Comprehensive Survey on Data Using Various Clustering Methodologies

A Comprehensive Survey on Data Using Various Clustering Methodologies

... In hierarchical clustering the data are not partitioned into a particular cluster in a single step. Instead, a series of partitions takes place, which may run from a single cluster containing all objects to n ...

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The dynamical fingerprint of gas-expulsion: Insights into the assembly of the Milky Ways’ old GC system

The dynamical fingerprint of gas-expulsion: Insights into the assembly of the Milky Ways’ old GC system

... If clusters expell their gas on a short time-scale, the stars in the cluster, assumed to be close to virial equilibrium before gas throw-out starts, cannot adjust quickly enough to the changing potential, hence ...

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Polymer-Immobilised Clusters of the Platinum Group Metals60-70

Polymer-Immobilised Clusters of the Platinum Group Metals60-70

... The methods of preparing platinum metals clusters immobilised on polymers having uniden- tified structure are based on forming small metal.. particles from fine powders, salts and mo[r] ...

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Aggregation of dinuclear {Fe2hpdta} units to form polynuclear oxy/hydroxy bridged Fe(III) coordination complexes

Aggregation of dinuclear {Fe2hpdta} units to form polynuclear oxy/hydroxy bridged Fe(III) coordination complexes

... 4 Selected examples of Fe-oxo-clusters: (a) K. Wieghardt, K. Pohl, I. Jibril and G. Huttner, Angew. Chem. Int. Ed. Engl., 1984, 23, 77; (b) W. Schmitt, C. E. Anson, R. Sessoli, M. Van Veen and A. K. Powell, J. ...

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Synthesis and magnetic characterisation of Fe1−xMgxSb2O4 (x = 0 25, 0 50, 0 75) and their oxygen excess derivatives, Fe1−xMgxSb2O4+y

Synthesis and magnetic characterisation of Fe1−xMgxSb2O4 (x = 0 25, 0 50, 0 75) and their oxygen excess derivatives, Fe1−xMgxSb2O4+y

... transition metal ions (Mn/Co and Fe/Co) in this structure and this was attributed to the occurrence of small clusters of cations for which ferromagnetic order was retained above the long-range magnetic ...

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Constraint based Cluster Ensemble to Detect Outliers in Medical Datasets

Constraint based Cluster Ensemble to Detect Outliers in Medical Datasets

... dense clusters, whereas outliers are the ones that belong to clusters of insignificant ...K clusters. The main property of the clusters is that data points within the same cluster have a high ...

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Two alternative approaches to access mixed hydride-amido zinc complexes : synthetic, structural and solution implications

Two alternative approaches to access mixed hydride-amido zinc complexes : synthetic, structural and solution implications

... the metal is not necessary, but rather the free carbene is available in solution to protect the sterically unencumbered metal once the reaction to produce the metal-hydride bond has ...of ...

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Electrochemical Process and Phase Formation of Fe-Based Alloy Nanowires into Anodic Alumina Oxide

Electrochemical Process and Phase Formation of Fe-Based Alloy Nanowires into Anodic Alumina Oxide

... First and more imperative one is, the Fe-Co alloy nanowires deposited at –4.0 V are metastable fcc phase while the Fe-Co alloy nanowires deposited at –2.0 V are stable hcp phase. The formation of Fe-Co fcc alloy ...

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