Results 121 to 130 of about 24,235 (299)

Heavier Alkyne‐Ni0 Complexes, [R2E2·Ni] (E = Sn, Pb), Exhibiting σ‐Complex Character

Angewandte Chemie, EarlyView.
Using a reductive group elimination strategy, heavier alkyne (LEEL; E = Sn, Pb) complexes of Ni0 are accessed. In contrast to classical alkyne coordination, these systems are best described as σ‐complexes, driven by ligand‐induced constraints and the established poor π‐bonding in heavier alkyne analogues.
Leopold Junge, Emeric Schubert, Israel Fernández, Terrance J. Hadlington   +3 more
wiley   +2 more sources

Structure and phase transitions of unstable metal hydrides and hydrides of intermetallic compounds

, 1992
The investigation is concerned with metal hydrides of YI, YII, YIII groups, Laves phases and beta -phases. The object to be attained is structural investigation and development of the concept of constructing complex hydrides.
Irodova Alla Byacheslavovna
core  

Polarity‐Directed Synthesis of an Exfoliable 2D Polyoxometalate‐Based Metal‐Organic Framework for Noble Metal‐Free Alkyne Transfer Semi‐Hydrogenation

Angewandte Chemie, EarlyView.
Exfoliation of 2D nanosheets based on polyoxometalate metal‐organic frameworks (POMOFs) gives access to nanostructures with selective catalytic reactivity for the alkyne transfer semi‐hydrogenation which outperform the bulk references and rival some classical noble metal‐based catalysts.
Xusheng Dai, Yalei Zhang, Yue Zhao, Shujun Li, Nana Ma, Qingchun Xia, Yiwei Liu, Rongji Liu, Shuxia Liu, Xuenian Chen, Carsten Streb   +10 more
wiley   +2 more sources

High pressure study of sodium trihydride

Frontiers in Chemistry
The reactivity between NaH and H2 has been investigated through a series of high-temperature experiments up to pressures of 78 GPa in diamond anvil cells combined with first principles calculations. Powder X-ray diffraction measurements show that heating
Tomas Marqueño, Mikhail A. Kuzovnikov, Israel Osmond, Phillip Dalladay-Simpson, Andreas Hermann, Ross T. Howie, Ross T. Howie, Miriam Peña-Alvarez   +7 more
doaj   +1 more source

Nanocrystalline Metal/Metal Hydrides for Fuel Cell Applications

, 2006
Formation of nanocrystalline films by low temperature deposition of metallic films was investigated with special emphasis for hydrogen storage. Large grain boundary volume associated with nanocrystalline films was shown to be favorable for hydrogen ...
Riley, Tiffany Lynn
core  

Predicting formation enthalpies of metal hydrides [PDF]

, 2004
In order for the hydrogen based society viz. a society in which hydrogen is the primary energy carrier to become realizable an efficient way of storing hydrogen is required. For this purpose metal hydrides are serious candidates.
Andreasen, A.
core  

An Integrated Solution to FIB-Induced Hydride Artifacts in Pure Zirconium

Micromachines
The preparation method of transmission electron microscopy (TEM) samples for pure zirconium was successfully executed using a focused ion beam (FIB) system. These samples unveiled artifact hydrides induced during the FIB sample preparation process, which
Yi Qiao, Zongwei Xu, Shilei Li, Fu Wang, Yubo Huang   +4 more
doaj   +1 more source

Potassium‐Ligand Cooperation Facilitated Chemical Bond Activation and Catalytic Hydrogenation

Angewandte Chemie, EarlyView.
A new strategy for alkali metal‐mediated catalysis based on metal–ligand cooperation (MLC) is presented. Potassium pincer complexes exhibit remarkable reactivity toward a range of molecules via an unprecedented potassium–ligand cooperative mechanism. This reactivity enables potassium‐catalyzed hydrogenation, providing efficient reduction of ketones and
Yaoyu Liang, Irena Efremenko, Thiyagarajan Subramanian, Amit Kumar, Liat Avram, Yael Diskin‐Posner, David Milstein   +6 more
wiley   +2 more sources

Direct synthesis of pure complex aluminium hydrides by cryomilling

, 2010
Simple mechanochemical procedures can be used for the solid-state preparation of stable complex aluminium hydrides as hydrogen storage materials. For the synthesis of unstable complex hydrides, cryomilling at temperatures at which product decomposition ...
Pommerin, A., Schüth, F., Weidenthaler, C., Felderhoff, M.   +3 more
core   +1 more source

High‐Temperature Superconductivity in Perovskite Hydride Below 10 GPa

Advanced Science
Hydrogen and hydride materials have long been considered promising materials for high‐temperature superconductivity. However, the extreme pressures required for the metallization of hydrogen‐based superconductors limit their applications.
Mingyang Du, Hongyu Huang, Zihan Zhang, Min Wang, Hao Song, Defang Duan, Tian Cui   +6 more
doaj   +1 more source