Results 21 to 30 of about 170,351 (318)

Synthesis and Strong Solvatochromism of Push-Pull Thienylthiazole Boron Complexes

open access: yesMolecules, 2022
The solvatochromic behavior of two donor-π bridge-acceptor (D-π-A) compounds based on the 2-(3-boryl-2-thienyl)thiazole π-linker and indandione acceptor moiety are investigated.
Martijn J. Wildervanck   +2 more
doaj   +1 more source

Chemical diffusivity of boron in melts of haplogranitic composition [PDF]

open access: yes, 1993
Chemical diffusivities of B in synthetic melts of haplogranitic composition have been measured by the diffusion couple technique at 1 atm between 1200–1600°C.
Chaussidon, Marc   +2 more
core   +1 more source

Defect-induced B4C electrodes for high energy density supercapacitor devices

open access: yesScientific Reports, 2021
Boron carbide powders were synthesized by mechanically activated annealing process using anhydrous boron oxide (B2O3) and varying carbon (C) sources such as graphite and activated carbon: The precursors were mechanically activated for different times in ...
Özge Balcı   +5 more
doaj   +1 more source

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

Fast and accurate electronic structure methods : large systems and applications to boron-carbon heterofullerenes [PDF]

open access: yes, 2013
The interactions among electrons and nuclei, which are the constituents of matter, are governed by the fundamental laws of quantum mechanics. Methods that use these laws in order to determine the properties of matter are called ab-initio approaches ...
Mohr, Stephan
core   +1 more source

Electrochemical incineration of cresols: A comparative study between PbO2 and boron-doped diamond anodes [PDF]

open access: yes, 2009
The electrooxidation of aqueous solutions containing 5 mM of o-, m- and p-cresol at pH 4.0 has been investigated using a flow filter-press reactor with a boron-doped diamond (BDD) under galvanostatic electrolysis. All cresols are degraded at similar rate
Arias, Conchita   +4 more
core   +1 more source

Reduction of boron diffusion in silicon-germanium by fluorine implantation

open access: yes, 2004
This paper investigates the effect of a 185 keV, 2.3×1015cm-2 F+ implant on boron thermal diffusion and boron transient enhanced diffusion (TED) in SiGe by characterising the diffusion of a boron marker layer in samples with and without a 288 keV, 6 ...
El Mubarek, H.A.W.   +2 more
core   +1 more source

Isolated Au Atom Anchored on Porous Boron Nitride as a Promising Electrocatalyst for Oxygen Reduction Reaction (ORR): A DFT Study

open access: yesFrontiers in Chemistry, 2019
The development of efficient, stable, and low-cost catalytic material for the oxygen reduction reaction (ORR) is currently highly desirable but challenging.
Qiaoling Li   +8 more
doaj   +1 more source

Effect of Fluorine Implantation Dose on Boron Transient Enhanced Diffusion and Boron Thermal Diffusion in Si1-xGex

open access: yes, 2005
This paper studies how boron transient enhanced diffusion (TED) and boron thermal diffusion in Si1-xGex are influenced by a high-energy fluorine implant at a dose in the range 5 × 1014 cm-2 to 1 × 1016 cm-2.
Ashburn, Peter   +21 more
core   +1 more source

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