Results 11 to 20 of about 270 (258)

Hydrophosphination of boron–boron multiple bonds

open access: yesChemical Science, 2020
Compounds containing boron–boron double and triple bonds are shown to undergo uncatalysed hydrophosphination reactions with diphenylphosphine.
Tom E. Stennett   +4 more
openaire   +3 more sources

Synthesis of Boron Analogues of Enamines via Hydroamination of a Boron−Boron Triple Bond [PDF]

open access: yesAngewandte Chemie International Edition, 2020
AbstractAn N‐heterocyclic‐carbene‐stabilized diboryne undergoes rapid, high‐yielding and catalyst‐free hydroamination reactions with primary amines, yielding 1‐amino‐2‐hydrodiborenes, which can be considered boron analogues of enamines. The electronics of the organic substituent at nitrogen influence the structure and further reactivity of the diborene
Tobias Brückner   +4 more
openaire   +3 more sources

Boronated Cyanometallates

open access: yesInorganic Chemistry, 2022
Thirteen boronated cyanometallates [M(CN-BR3)6]3/4/5- [M = Cr, Mn, Fe, Ru, Os; BR3 = BPh3, B(2,4,6,-F3C6H2)3, B(C6F5)3] and one metalloboratonitrile [Cr(NC-BPh3)6]3- have been characterized by X-ray crystallography and spectroscopy [UV-vis-near-IR, NMR, IR, spectroelectrochemistry, and magnetic circular dichroism (MCD)]; CASSCF+NEVPT2 methods were ...
Brendon J. McNicholas   +12 more
openaire   +3 more sources

3D modeling of boron transport in DIII-D L-mode wall conditioning experiments

open access: yesNuclear Materials and Energy, 2021
DIII-D L-mode experiments with local boron powder injection for real-time wall conditioning have been interpreted for the first time with the 3D plasma edge transport Monte Carlo code EMC3-EIRENE.
F. Effenberg   +16 more
doaj   +1 more source

Synthesis and rheological property of polyborosiloxanes

open access: yesCailiao gongcheng, 2022
In order to explore the influence of the physical crosslinking network structure of polyborosiloxanes(PBDMSs) on the viscoelasticity of the system, hydroxyl terminated polydimethylsiloxane (PDMS) with different hydroxyl contents were reacted with boric ...
LIU Chenyang, LI Feng, ZHAI Zhe, LI Hui
doaj   +1 more source

Effect of spatially non-uniform boronization on plasma restart in WEST

open access: yesNuclear Materials and Energy
The recent ITER re-baseline with the adoption of a full-W wall calls for mandatory boronization studies. ITER pulses will be inboard limited on the W tiles of the central column for several seconds during the current ramp up phase.
A. Gallo   +34 more
doaj   +1 more source

Elimination of inter-discharge helium glow discharge cleaning with lithium evaporation in NSTX

open access: yesNuclear Materials and Energy, 2017
Operation in the National Spherical Torus Experiment (NSTX) typically used either periodic boronization and inter-shot helium glow discharge cleaning (HeGDC), or inter-shot lithium evaporation without boronization, and initially with inter-shot HeGDC. To
R. Maingi   +3 more
doaj   +1 more source

The Hardness of Boride Layer on the S45C Iron (A preliminary study on surface hardening of ferrous material)

open access: yesAceh International Journal of Science and Technology, 2012
- The property such as microhardness of boride layer formed on S45C iron was investigated. Boronizing was carried out in a solid medium consisting of nano size powders of 50% B4C as a donor, 45% SiC as a diluent, and 5% KBF4 as an activator treated at ...
Sutrisno S, Bambang Soegijono
doaj   +3 more sources

A Thermodynamic 3D Model for the Simulation of Diffusion‐Controlled Alloying Processes in Heterogeneous Material Structures

open access: yesAdvanced Engineering Materials, EarlyView.
A numerical model resulting from irreversible thermodynamics for describing transport processes is introduced, focusing on thermodynamic activity gradients as the actual driving force for diffusion. Implemented in CUDA C++ and using CalPhaD methods for determining the necessary activity data, the model accurately simulates interdiffusion in aluminum ...
Ulrich Holländer   +3 more
wiley   +1 more source

Bonding with boron [PDF]

open access: yesNature Chemistry, 2009
Long ago, a global search for borane superfuels led fortuitously to the discovery of carboranes. Ken Wade recalls his own undistinguished part in the space race, and notes how carboranes revitalized boron hydride chemistry and modified our ideas of chemical bonding.
openaire   +2 more sources

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