نتایج جستجو برای: ytterbium compounds

تعداد نتایج: 227910  

Journal: :New Journal of Chemistry 2020

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Journal: :Optics express 2010
Christina B Olausson Lara Scolari Lei Wei Danny Noordegraaf Johannes Weirich Thomas T Alkeskjold Kim P Hansen Anders Bjarklev

We demonstrate electrical tunability of a fiber laser using a liquid crystal photonic bandgap fiber. Tuning of the laser is achieved by combining the wavelength filtering effect of a tunable liquid crystal photonic bandgap fiber device with an ytterbium-doped photonic crystal fiber. We fabricate an all-spliced laser cavity based on the liquid crystal photonic bandgap fiber mounted on a silicon ...

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Journal: :Physical chemistry chemical physics : PCCP 2012
Alessandro Sanguineti Angelo Monguzzi Gianfranco Vaccaro Franco Meinardi Elisabetta Ronchi Massimo Moret Ugo Cosentino Giorgio Moro Roberto Simonutti Michele Mauri Riccardo Tubino Luca Beverina

A new oxyiminopyrazole-based ytterbium chelate enables NIR emission upon UV excitation in colorless single layer luminescent solar concentrators for building integrated photovoltaics.

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Journal: :Acta crystallographica. Section B, Structural science 2006
Alla Arakcheeva Gervais Chapuis

A method based on the superspace approach is presented with the aim of generating a family of modular structures from a single incommensurately modulated structure. This approach based on the variation of the modulation vector q is applied to the generation of the K5Yb(MoO4)4, potassium ytterbium tetramolybdate, family of modular structures. The beta coefficient of the modulation vector q = bet...

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Journal: :Australian Journal of Chemistry 2019

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Journal: :Radiochemistry 2023

Abstract A simple sublimation technology for the lutetium and ytterbium separation was proposed, which already at stage of preliminary experiments showed effectiveness: (a) completeness Yb resulted in short-term thermal annealing is least 98%, distilled product completely free from 177 Lu, no additional preparation repeated irradiation required ; (b) traditional ion-exchange chromatography can ...

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2017
Aradhana Pindwal Arkady Ellern Aaron D. Sadow

The rare-earth bis(alkyl) compound Sm{C(SiHMe2)3}2THF2 (1b) is prepared by the reaction of samarium(II) iodide and 2 equiv of KC(SiHMe2)3. This synthesis is similar to that of previously reported Yb{C(SiHMe2)3}2THF2 (1a), and compounds 1a,b are isostructural. Reactions of 1b and 1 or 2 equiv of B(C6F5)3 afford SmC(SiHMe2)3HB(C6F5)3THF2 (2b) or Sm{HB(C6F5)3}2THF2 (3b), respectively, and 1,3-disi...

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Journal: :Advanced Synthesis & Catalysis 2021

An ytterbium catalyzed formal [3+3] cycloaddition of cyclic enamines and ?,?-unsaturated ketones is reported. The reaction proceeds with a ‘head to tail’ regioselectivity through conjugate addition the enamine moiety followed by an amine-carbonyl condensation. In use chiral provided high degree stereoselectivity, driven possible balance between steric ?-stacking effects. resulting bicyclic 1,4-...

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2016
A. Fert P. M. Levy P. Bonville

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Journal: :Applied sciences 2021

The design of sustainable and efficient materials for energy storage degradation environmental pollutants (specifically organic dyes) is a matter major interest these days. For this purpose, cerium- ytterbium-based GO/g-C3N4/Fe2O3 composites have been synthesized to explore their properties, especially in charge devices such as supercapacitors, also photocatalysts the carcinogenic dyes from env...

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