Direct Observation of Oxygen Atoms Taking Tetrahedral Interstitial Sites in Medium‐Entropy Body‐Centered‐Cubic Solutions
Sign Up to like & getrecommendations! Published in 2023 at "Advanced Materials"
DOI: 10.1002/adma.202209941
Abstract: Interstitial solutes, such as carbon in steels, are effective solid‐solution hardening agents. These alloying elements are believed to occupy the octahedral interstices in body‐centered‐cubic (bcc) metals. Using deep‐sub‐angstrom‐resolution electron ptychography, here the first experimental evidence… read more here.
Keywords: medium entropy; body centered; interstitial sites; centered cubic ... See more keywords
Low-dimensional compounds containing bioactive ligands. Part XVI: Halogenated derivatives of 8-quinolinol N-oxides and their copper(II) complexes
Sign Up to like & getrecommendations! Published in 2021 at "Journal of Molecular Structure"
DOI: 10.1016/j.molstruc.2021.131144
Abstract: Abstract Four N-oxides, 8-quinolinol N-oxide (8-HQNO), 5,7-dichloro-8-quinolinol N-oxide (HdClQNO), 5,7-dibromo-8-quinolinol N-oxide (HdBrQNO) and 7-iodo-8-quinolinol N-oxide (HIQNO) as well as their six copper complexes, CuCl2(8-HQNO)2(H2O) (1), CuCl2(HdClQNO)2(H2O)2 (2), Cu(dClQNO)2(CHCl3) (3), Cu(dClQNO)2(H2O) (4), {[Cu(dBrQNO)2]•2H2O}n (5) and CuCl2(HIQNO)2(H2O)4… read more here.
Keywords: oxygen atoms; copper; copper complexes; h2o ... See more keywords
Electrons in Oxygen Vacancies and Oxygen Atoms Activated by Ce3+/Ce4+ Promote High-Sensitive Electrochemical Detection of Pb(II) over Ce-Doped α-MoO3 Catalysts.
Sign Up to like & getrecommendations! Published in 2020 at "Analytical chemistry"
DOI: 10.1021/acs.analchem.0c03725
Abstract: Modulating the active sites of oxygen vacancies (OVs) to enhance the catalytic properties of nanomaterials has attracted much research interest in various fields, but its intrinsic catalytic mechanism is always neglected. Herein, we establish an… read more here.
Keywords: detection; ce3 ce4; oxygen vacancies; electrochemical detection ... See more keywords
Incorporating Oxygen Atoms in a SnS2 Atomic Layer to Simultaneously Stabilize Atomic Hydrogen and Accelerate the Generation of Hydroxyl Radicals for Water Decontamination.
Sign Up to like & getrecommendations! Published in 2022 at "Environmental science & technology"
DOI: 10.1021/acs.est.1c07152
Abstract: Photoelectrocatalysis (PEC) is an efficient way to address various pollutants. Surface-adsorbed atomic hydrogen (H*) and hydroxyl radicals (•OH) play a key role in the PEC process. However, the instability of H* and low production of… read more here.
Keywords: hydroxyl radicals; incorporating oxygen; atomic hydrogen; atoms sns2 ... See more keywords
Sodium and Magnesium Ion Location at the Backbone and at the Nucleobase of RNA: Ab Initio Molecular Dynamics in Water Solution
Sign Up to like & getrecommendations! Published in 2022 at "ACS Omega"
DOI: 10.1021/acsomega.2c01327
Abstract: The interactions between Na+ or Mg2+ ions with different parts of single-stranded RNA molecules, namely, the oxygen atoms from the phosphate groups or the guanine base, in water solution have been studied using first-principles molecular… read more here.
Keywords: water; rna; mg2 ions; solvation ... See more keywords
The Role of Semilabile Oxygen Atoms for Intercalation Chemistry of the Metal-Ion Battery Polyanion Cathodes.
Sign Up to like & getrecommendations! Published in 2018 at "Journal of the American Chemical Society"
DOI: 10.1021/jacs.7b12644
Abstract: Using the orthorhombic layered Na2FePO4F cathode material as a model system we identify the bonding of the alkali metal cations to the semilabile oxygen atoms as an important factor affecting electrochemical activity of alkali cations… read more here.
Keywords: ion; chemistry; semilabile oxygen; oxygen atoms ... See more keywords
Synthesis and structures of diaryloxystannylenes and -plumbylenes embedded in 1,3-diethers of thiacalix[4]arene.
Sign Up to like & getrecommendations! Published in 2020 at "Dalton transactions"
DOI: 10.1039/d0dt02496a
Abstract: New types of diaryloxystannylenes and -plumbylenes have been synthesized and structurally characterized. Lappert's diaminostannylene and -plumbylene E[N(SiMe3)2]2 (E = Sn, Pb) react with 1,3-diethers of tetrathiacalix[4]arene bearing benzyl or SiiPr3 groups to give the corresponding… read more here.
Keywords: synthesis structures; diaryloxystannylenes plumbylenes; plumbylenes embedded; thiacalix arene ... See more keywords
Structural modification of hydroxyborates by adjusting the number of shared oxygen atoms and hydroxyl groups for further performance enhancement.
Sign Up to like & getrecommendations! Published in 2024 at "Dalton transactions"
DOI: 10.1039/d4dt03136a
Abstract: In recent years, hydroxyborates with excellent properties have attracted much attention. Through dedicated efforts, three new hydroxyborates-K2B5O8(OH), CsB5O6(OH)4, and CsB5O7(OH)2-have been successfully synthesized in a closed system. The ultraviolet (UV) cut-off edges of both K2B5O8(OH)… read more here.
Keywords: number; hydroxyl groups; shared oxygen; oxygen atoms ... See more keywords
Enhanced luminescence of oxygen atoms and nitrogen molecules in nitrogen–krypton nanoclusters
Sign Up to like & getrecommendations! Published in 2025 at "Low Temperature Physics"
DOI: 10.1063/10.0036201
Abstract: We studied luminescence accompanied by an injection of nitrogen–krypton–helium gas mixtures after passing radiofrequency discharge into dense cold helium gas. In the cold helium gas N2–Kr nanoclusters were formed, with a core of Kr atoms… read more here.
Keywords: oxygen; luminescence; nitrogen molecules; nitrogen krypton ... See more keywords
Infrared spectra in amorphous alumina: A combined ab initio and experimental study
Sign Up to like & getrecommendations! Published in 2023 at "Physical Review Materials"
DOI: 10.1103/physrevmaterials.7.045604
Abstract: We present a combined study based on experimental measurements of infrared (IR) dielectric function and first-principles calculations of IR spectra and vibrational density of states (VDOS) of amorphous alumina (am-Al$_2$O$_3$). In particular, we show that… read more here.
Keywords: dielectric function; amorphous alumina; oxygen; coordinated oxygen ... See more keywords
Evaluation of the probability of reaction of fast oxygen atoms with polymers and graphite
Sign Up to like & getrecommendations! Published in 2017 at "High Energy Chemistry"
DOI: 10.1134/s0018143917030146
Abstract: On the basis of analysis of published data on the reaction efficiency of various polymer materials and graphite in their interaction with fast oxygen atoms (energy of about 4.5 eV) as obtained in flight tests… read more here.
Keywords: oxygen; probability; fast oxygen; reaction ... See more keywords