scholarly journals Сверхизлучение и синтез наночастиц металла в полистирольном композите с многоспиновыми комплексами Eu при быстром одноосном сдавливании

2022 ◽  
Vol 92 (2) ◽  
pp. 258
Author(s):  
А.И. Александров ◽  
В.Г. Шевченко ◽  
С.С. Абрамчук ◽  
С.Б. Зезин ◽  
С.В. Фокин ◽  
...  
Keyword(s):  
Radio Frequency ◽  
Mechanical Activation ◽  
Metal Nanoparticles ◽  
Radical Anion ◽  
Molecular Magnet ◽  
Paramagnetic Centers ◽  
Free Electrons ◽  
Tert Butyl

Composites of heterospin molecular magnet [EuIII(SQ)3bipy] in a polystyrene (PS) matrix have been synthesized. This complex [EuIII(SQ)3bipy] contains four paramagnetic centers - the Eu3+ ion and three SQ ligands (SQ—3,6-di-tert-butyl benzoquinone radical anion); bipy (bipyridyl) is diamagnetic. It has been established that intensive mechanical activation of [EuIII(SQ)3bipy]/PS samples leads to an reological explosion, as a result of which radio frequency superradiance, the appearance of free electrons and the formation of Eu metal nanoparticles are observed. The duration of this process is 10 ns.

scholarly journals Молекулярные магнетики --- источники радиочастотного сверхизлучения при механической активации

2021 ◽  
Vol 47 (1) ◽  
pp. 23
Author(s):  
А.И. Александров ◽  
В.Г. Шевченко ◽  
И.А. Александров ◽  
С.В. Фокин ◽  
В.И. Овчаренко
Keyword(s):  
Radio Frequency ◽  
Mechanical Activation ◽  
Molecular Magnet ◽  
Rheological Explosion ◽  
Polystyrene Matrix ◽  
First Time

The effect of mechanical activation of radio frequency superradiance in a composite based on a heterospin molecular magnet and a polystyrene matrix has been established. Mechanical activation was carried out for the first time in unloading mode of rheological explosion .

scholarly journals Effects of Thermal Annealing on the Properties of Zirconium-Doped MgxZn1−XO Films Obtained through Radio-Frequency Magnetron Sputtering

Membranes ◽  
2021 ◽  
Vol 11 (5) ◽  
pp. 373
Author(s):  
Wen-Yen Lin ◽  
Feng-Tsun Chien ◽  
Hsien-Chin Chiu ◽  
Jinn-Kong Sheu ◽  
Kuang-Po Hsueh
Keyword(s):  
Magnetron Sputtering ◽  
Radio Frequency ◽  
Photoelectron Spectroscopy ◽  
Annealing Temperature ◽  
Radio Frequency Magnetron ◽  
Radio Frequency Magnetron Sputtering ◽  
X Ray Diffraction ◽  
Free Electrons ◽  
X Ray ◽  
Mg Content

Zirconium-doped MgxZn1−xO (Zr-doped MZO) mixed-oxide films were investigated, and the temperature sensitivity of their electric and optical properties was characterized. Zr-doped MZO films were deposited through radio-frequency magnetron sputtering using a 4-inch ZnO/MgO/ZrO2 (75/20/5 wt%) target. Hall measurement, X-ray diffraction (XRD), transmittance, and X-ray photoelectron spectroscopy (XPS) data were obtained. The lowest sheet resistance, highest mobility, and highest concentration were 1.30 × 103 Ω/sq, 4.46 cm2/Vs, and 7.28 × 1019 cm−3, respectively. The XRD spectra of the as-grown and annealed Zr-doped MZO films contained MgxZn1−xO(002) and ZrO2(200) coupled with Mg(OH)2(101) at 34.49°, 34.88°, and 38.017°, respectively. The intensity of the XRD peak near 34.88° decreased with temperature because the films that segregated Zr4+ from ZrO2(200) increased. The absorption edges of the films were at approximately 348 nm under 80% transmittance because of the Mg content. XPS revealed that the amount of Zr4+ increased with the annealing temperature. Zr is a potentially promising double donor, providing up to two extra free electrons per ion when used in place of Zn2+.

Structure and Dynamics of Bis(triphenylphosphine)-3,6-di-tert-butyl-o-semiquinone Radical Anion Complexes of Ag+and Cu+

2003 ◽  
Vol 107 (33) ◽  
pp. 6345-6350 ◽  
Author(s):  
Rakhim R. Rakhimov ◽  
Tamika N. Hawkins ◽  
Jimmy S. Hwang ◽  
Alexander I. Prokof'ev ◽  
Aleksey I. Aleksandrov
Keyword(s):  
Radical Anion ◽  
Semiquinone Radical ◽  
Tert Butyl ◽  
Structure And Dynamics ◽  
Anion Complexes ◽  
Semiquinone Radical Anion

scholarly journals Reprint of: High spin ground state copper(II) and nickel(II) complexes possessing the 3,5-di-tert-butyl-1,2-semiquinonate radical anion

Polyhedron ◽  
2017 ◽  
Vol 136 ◽  
pp. 176-185
Author(s):  
Royce A. Davidson ◽  
Jingjun Hao ◽  
Arnold L. Rheingold ◽  
Joel S. Miller
Keyword(s):  
High Spin ◽  
Ground State ◽  
Radical Anion ◽  
Tert Butyl ◽  
Spin Ground State

The Study of High Efficiency Photovoltaic Devices with Metal Nanoparticles

2014 ◽  
Vol 597 ◽  
pp. 3-6
Author(s):  
Li Zen Hsieh ◽  
Mo Hua Lin ◽  
Xi Ming Duan
Keyword(s):  
Electrical Conductivity ◽  
Metal Nanoparticles ◽  
High Efficiency ◽  
Incident Light ◽  
Near Field ◽  
Photoelectric Conversion Efficiency ◽  
Light Reflection ◽  
Photovoltaic Devices ◽  
Free Electrons ◽  
Photoelectric Conversion

The photovoltaic devices with free electrons of nanometal were studied by nanometal scattering and near-field surface plasmon resonance (SPR) enhancing. The results revealed that devices with metal nonoparticles can improve the photoelectric conversion efficiency of solar cells. The metal nanoparticles roughness also reduced the incident light reflection and increased the electrical conductivity of metal characteristics.

A stable tetrazagallole and its radical anion dimer

2021 ◽  
Author(s):  
Qian Yu ◽  
Li Zhang ◽  
Yuhao He ◽  
Jinjing Pan ◽  
Hao Li ◽  
...  
Keyword(s):  
Radical Anion ◽  
Tert Butyl ◽  
Butyl Benzene

The reaction of the carbazole ligand supported Ga(I) compound LGa(THF) (3) and 1-azido-4-(tert-butyl)benzene (ArN3) afforded the first stable tetrazagallole LGaN4Ar2 (4) bearing a three-coordinate Ga atom. Reduction of 4 with...

scholarly journals Hot electron prompted highly efficient photocatalysis based on 3D graphene/non-precious metal nanoparticles

RSC Advances ◽  
2020 ◽  
Vol 10 (69) ◽  
pp. 42054-42061
Author(s):  
Suling Zhang ◽  
Yanhong Lu ◽  
Xingchen Wan ◽  
Yaxin Duan ◽  
Junlin Gao ◽  
...  
Keyword(s):  
Metal Nanoparticles ◽  
Precious Metal ◽  
Hot Electron ◽  
Free Electrons ◽  
3D Graphene ◽  
Nitrogen Doped ◽  
Co Catalysts ◽  
Photocatalytic Activities ◽  
Carbon Coated ◽  
Nitrogen Doped Carbon

Based on the highly energetic hot/free electrons, 3DGraphene loaded nitrogen-doped carbon-coated Co catalysts show remarkably enhanced photocatalytic activities.

Siliciumverbindungen mit starken intramolekularen sterischen Wechselwirkungen, XX [1] 1,1-Di-tert-butyl-2,2-dimesityldisilane: Synthese, Molekülstruktur, Radikale / Silicon Compounds with Strong Intramolecular Steric Interactions, XX [1] 1,1-Di-tert-butyl-2,2-dimesityldisilanes: Synthesis, Molecular Structure, Radicals

1985 ◽  
Vol 40 (5) ◽  
pp. 601-606 ◽  
Author(s):  
Manfred Weidenbruch ◽  
Klaus Kramer
Keyword(s):  
Molecular Structure ◽  
Radical Anion ◽  
Alkali Metals ◽  
Force Field Calculations ◽  
Silicon Compounds ◽  
X Ray ◽  
Tert Butyl ◽  
Anti Conformation ◽  
Empirical Force Field ◽  
Empirical Force Field Calculations

The sterically congested disilanes tBu2XSiSiXMes2 [X = H (1), X = Cl (2)] have been prepared. An X-ray structure analysis of 1 reveals a preference for the anti-conformation in the solid state. Similar results have been obtained by empirical force field calculations and DNMR spectroscopy. Reaction of 2 with an electron rich olefin leads to a chlorine bridged disilanyl radical whereas treatment with alkali metals yields the corresponding disilenyl radical anion, tBu2Si=SiMes2˙̄.

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