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clusters

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COORDINATE BOND- AND HYDROGEN BOND-ASSISTED ELECTRON TRANSFER STRATEGY TOWARDS THE GENERATION OF PHOTOCHROMIC METAL PHOSPHITE

Redazione
(AGENPARL) – LONDON (UNITED KINGDOM), sab 03 ottobre 2020 Grafting conjugated dipyridine-derivatives, BPB (1,4-bis(pyrid-4-yl)benzene) and BPBP (4,4′-di(pyridin-4-yl)-1,1′-biphenyl), to metal phosphite system yields two hybrid zincophosphites [Zn2(HPO3)2(BPB)] (1) and [H2BPBP]3·[Zn5Cl8(HPO3)4]·4H2O (2). Compound 1 displays a hybrid layer with the inorganic zincophosphite chains as building blocks. Compound 2 features isolated pentanuclear zinc......
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MATRIX STIFFNESS AND CLUSTER SIZE COLLECTIVELY REGULATE DORMANCY VERSUS PROLIFERATION IN BRAIN METASTATIC BREAST CANCER CELL CLUSTERS

Redazione
(AGENPARL) – LONDON (UNITED KINGDOM), mar 29 settembre 2020 Breast cancer cells can metastasize either as single cells or as clusters to distant organs from the primary tumor site. Cell clusters have been shown to possess higher metastatic potential compared to single cells. The organ microenvironment is critical in regulating......
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A DENSITY FUNCTIONAL THEORY STUDY ON THE STABILITY OF PT CLUSTERS IN MOF-808

Redazione
(AGENPARL) – LONDON (UNITED KINGDOM), lun 28 settembre 2020 Metal organic frameworks (MOF) encapsulated metal clusters have shown superior catalytic activity due to its geometric and electronic properties of metal clusters, which are largely determined by adsorption sites, and sizes and morphologies of encapsulated metal clusters. In the present work,......
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MULTIPLE D-D BONDS BETWEEN EARLY TRANSITION METALS IN TM2LIN (TM = SC, TI) SUPERATOMIC MOLECULE CLUSTERS

Redazione
(AGENPARL) – LONDON (UNITED KINGDOM), mar 22 settembre 2020 The synthesis and application of compounds with Cr-Cr and V-V d-d quintuple bonds (σ, 2π, 2δ) have led to a new thinking about whether d-d multiple bonds also exist between early transition metals such as Sc-Sc and Ti-Ti. In this work,......
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SURFACE FUNCTIONALIZATION: AN EFFICIENT ALTERNATIVE FOR PROMOTING THE CATALYTIC ACTIVITY OF CLOSED SHELL GOLD CLUSTERS

Redazione
(AGENPARL) – LONDON (UNITED KINGDOM), lun 21 settembre 2020 Surface functionalization through adsorption of ligands or non-metal atoms is considered to be an interesting and viable approach for tuning the physicochemical properties of gold clusters. Highly stable and magic numbered electronic configurations of thiolate protected gold clusters such as Au25(SR)18......
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ANALYSIS OF THE ATOMIC STRUCTURE OF CDS MAGIC-SIZE CLUSTERS BY X-RAY ABSORPTION SPECTROSCOPY

Redazione
(AGENPARL) – LONDON (UNITED KINGDOM), mer 16 settembre 2020 Magic-size clusters are ultra-small colloidal semiconductor systems that are intensively studied due to their monodisperse nature and sharp UV-vis absorption peak compared with regular quantum dots. However, the small size of such clusters (<2 nm), and the large surface-to-bulk ratio significantly......
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NANOTUBES ENABLE FIRST ATOMIC-SCALE OBSERVATION OF NUCLEATION’S BABY STEPS

Redazione
(AGENPARL) – CAMBRIDGE (UNITED KINGDOM), gio 10 settembre 2020 A clever approach has allowed researchers to image the nucleation and growth of iron, gold and rhenium particles in real time at the sub-nanometre level – the first time that this has ever been observed in such detail.1 The strategy, which......
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PROBING THE STRUCTURAL EVOLUTION, ELECTRONIC AND SPECTRAL PROPERTIES OF BERYLLIUM DOPED MAGNESIUM AND THEIR IONS CLUSTERS

Redazione
(AGENPARL) – LONDON (UNITED KINGDOM), mer 09 settembre 2020 The beryllium doped small-sized magnesium and their ions clusters are fully studied in this work. CALMPSO software was used to search for BeMgnQ (Q=0, ±1, n = 2 – 12) clusters’ structures. The structural optimization with density functional theory (DFT) of......
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NICKEL CLUSTERS ON TIO2(110): THERMAL CHEMISTRY AND PHOTOCATALYTIC HYDROGEN EVOLUTION OF METHANOL

Redazione
(AGENPARL) – LONDON (UNITED KINGDOM), mer 09 settembre 2020 In heterogeneous photocatalysis, noble metals such as Au, Pt, or Pd are most commonly used as co-catalysts to facilitate H2 evolution, yet their costs are problematic for applications on a large scale. In this work, we show that the cheaper, more......

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