Abstracts

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2020-08-10
13:13
[PUBDB-2020-02965] Abstract

Giant supramolecules as molecular containers
European Crystallographic Meeting 2019, ECM 2019, ViennaVienna, Austria, 18 Aug 2019 - 23 Aug 20192019-08-182019-08-23 () [10.1107/S2053273319090259]  GO
One of the most outstanding areas in the modern coordination chemistry is the rational design of giantsupramolecules built up from metal ions connected to each other via polytopic ligands resulting in large hollowcages. The systematic approach to the synthesis of hollow supramolecules developed in our group is thecoordination of Cu+ and Ag+ cations to phosphorus atoms of the pentaphosphaferrocenes, [CpRFe(hapta5-P5)] (CpR=hapta5-C5R5, R=Me (Cp*), CH2Ph (CpBn), etc.) [1-3]. [...]
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2020-08-10
13:07
[PUBDB-2020-02964] Abstract

Phosphorus can do more: $\pi–\pi$ stacking of planar aromatic P5-rings
European Crystallographic Meeting 2019, ECM 2019, ViennaVienna, Austria, 18 Aug 2019 - 23 Aug 20192019-08-182019-08-23 () [10.1107/S205327331909065X]  GO
The directed non-bonding interactions play an important role in modern supramolecular chemistry. Concerningphosphorus, so-called pnictogen bonding is usually mentioned in this context [1] [...]
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ddc:530

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2020-08-04
17:30
[PUBDB-2020-02933] Abstract
et al
Dewetting-Alloying of Nicu Bilayers on $TiO_{2}$ Surfaces for Noble Metal-Free Photocatalytic $H_{2}$ Evolution
237th Electrochemical Society (ECS) Meeting, MontrealMontreal, Canada, 10 May 2020 - 14 May 20202020-05-102020-05-14
We present an approach to fabricate an efficient noble metal-free photocatalytic platform for H2 evolution and provide evidences that the photocatalyst active state forms via a photo-induced redox process in organic-water mixtures.To fabricate the photocatalytic platform, NiCu bilayers (thickness in the range of a few nm) are deposited by Ar-plasma sputtering on anodic TiO2 nanocavity arrays.[1] A subsequent thermal treatment triggers solid-state dewetting[2,3] of the metal bilayer, i.e. owing to surface diffusion, the Ni and Cu films agglomerate and inter-mix forming NiCu bimetallic nanoparticles at the TiO2 surface.[4] This approach allows for a full control over key features of the NiCu nanoparticles, e.g. [...]
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2019-12-12
14:29
[PUBDB-2019-05105] Abstract
et al
Evaluation of the enteric nervous system by three-dimensional holographic imaging in x-ray phase contrast nanotomography
UEG Week, BarcelonaBarcelona, Spain, 21 Oct 2019 - 23 Oct 20192019-10-212019-10-23
IntroductionThe enteric nervous system (ENS) in dysmotility has been studied by classical light microscopy including immunohistochemistry. However, the procedure is rather time-consuming and only small components of the ENS in two dimensions can be analyzed. [...]

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2018-12-17
17:41
OpenAccess [PUBDB-2018-05629] Abstract
et al
Evaluation of the XTM setup at the P05 Imaging Beamline at PETRA III using a sample of Nanoporous gold
24th International Congress on X-ray Optics and Microanalysis, ICXOM24, TriesteTrieste, Italy, 25 Sep 2017 - 29 Sep 20172017-09-252017-09-29  GO
Nanoporous gold (NPG) is the structure resultant from dealloying an Ag-rich AgAu alloy. It displays a high specific surface area, high electrical conductivity and good mechanical properties, making it very interesting for sensing and actuating applications [1]. [...]
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2018-12-17
14:21
[PUBDB-2018-05607] Abstract
et al
Membrane protein scaffold systems and SAXS characterization
iNEXT Annual Users Meeting, ESRFESRF, France, 19 Mar 2018 - 21 Mar 20182018-03-192018-03-21
Infrastructure needed for the solution characterization of reconstituted membrane proteins (MPs) has been designed and implemented at the iNEXT partner synchrotron facilities Petra-III (P12, EMBL-HH) and SOLEIL (SWING, SOLEIL). HT-SEC-SAXS systems are now optimized for purification and screening and rapid structural data collection of MPs. [...]
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2018-10-12
14:04
[PUBDB-2018-03756] Abstract
et al
Paracelsian, $BaAl_{2}Si_{2}O_{8}$, under high pressure: three new phase transitions and three new high-pressure phases
XX Meeting of the International Mineralogical Association, MelbourneMelbourne, Australia, 13 Aug 2018 - 17 Aug 20182018-08-132018-08-17
Minerals of the feldspar group are the most common minerals in the Earth’s crust. Due to their high geological relevance, numerous X-ray diffraction studies at non-ambient conditions (high temperature (HT) and / or pressure (HP)) have been performed with detailed studies focused on orthoclase, sanidine, microcline, albite, and anorthite. [...]

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2018-08-17
12:04
[PUBDB-2018-03011] Abstract

Influence of anchoring ligands on electronic and magnetic properties of heterobimetallic complexes
17th International Conference on X-ray Absorption Fine Structure, XAFS 2018, KrakowKrakow, Poland, 22 Jul 2018 - 27 Jul 20182018-07-222018-07-27
Magnetic molecules are envisaged as functional units in the molecular and supramolecular spintronic devices for future information technology. An essential first step in the implementation of the molecular systems in devices is the study and control of the molecule-electrode interfaces. [...]

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2018-03-22
11:34
[PUBDB-2018-01516] Abstract
et al
Structural investigations of spider attachment hairs
Verhandlungen der Deutschen Physikalischen Gesellschaft e.V., BerlinBerlin, Germany, 11 Mar 2018 - 16 Mar 20182018-03-112018-03-16
The hairy attachment system of spiders enables these animals to walkupside-down on rough and smooth surfaces without the use of glue.These outstanding biological structures comprise of pads includinghundreds to thousands of specially designed hairs that are made ofcomposite materials consisting of proteins and reinforcing chitin fibres.The goal of our study is to gain an in-depth understanding of thestructure-function mechanism of the attachment and detachment processesof single hairs to a surface. X-ray Tomographic Microscopy andScanning X-ray nanobeam diffraction are ideal tools to reveal the innerstructure of the spider hairs and allow to determine the gradient of themechanical properties which is essential for the attachment process.With both techniques we found that the shaft of the attachment hairis hollow. [...]

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2018-01-10
15:42
[PUBDB-2018-00384] Abstract

Searches for electroweak production of supersymmetric gauginos and sleptons with the ATLAS detector
25th International Conference on Supersymmetry and the unification of fundamental Interactions, SUSY17, Tata Institute of fundemental research,MumbaiTata Institute of fundemental research,Mumbai, India, 11 Dec 2017 - 15 Dec 20172017-12-112017-12-15
Many supersymmetric models feature gauginos and also sleptons withmasses less than a few hundred GeV. These can give rise to direct pairproduction rates at the LHC that can be observed in the data samplerecorded by the ATLAS detector [...]

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