二氧化碳饱和的甲基三丁基铵双[（三氟甲基）磺酰基]酰亚胺离子液体中对三苯基衍生的中间体：脉冲辐解研究

IF 0.7 4区物理与天体物理 Q4 CHEMISTRY, INORGANIC & NUCLEAR

Nukleonika Pub Date : 2022-12-01 DOI:10.2478/nuka-2022-0007

R. Kocia

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引用次数: 0

摘要

摘要采用紫外-可见光谱检测的纳秒脉冲辐解技术研究了离子液体（IL）甲基三丁基铵双[（三氟甲基）磺酰基]酰亚胺（[MeBu3N][NTf2]）溶液中的辐射诱导过程。在这些溶液中产生的瞬态吸收光谱被归属于TP自由基阴离子（TP•−）和三重态激发态（3TP*）。用二氧化碳饱和[MeBu3N][NTf2]溶液有效地取出预溶解电子（eprisolv−）（｛｛\rm｛e｝｝_。另一方面，CO2不是TP激发态（1TP*，3TP*）的清除剂，在与三乙胺（TEA）的反应中，TP激发态导致TP•−的形成。

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Intermediates derived from p-terphenyl in the methyltributylammonium bis[(trifluoromethyl)sulfonyl]imide ionic liquid saturated with carbon dioxide: Pulse radiolysis study

Abstract Radiation-induced processes in ionic liquid (IL) methyltributylammonium bis[(trifluoromethyl)sulfonyl] imide ([MeBu3N][NTf2]) solutions containing p-terphenyl (TP) and saturated with carbon dioxide (CO2) were studied using nanosecond pulse radiolysis technique with UV-vis detection. The transient absorption spectra generated in these solutions were assigned to TP radical anions (TP•−) and triplet excited states (3TP*). Saturation of [MeBu3N][NTf2] solutions with carbon dioxide efficiently takes out presolvated electrons (epresolv−) ( {{\rm{e}}_{{\rm{presolv}}}^ - } ) and solvated electrons (esolv−) ( {{\rm{e}}_{{\rm{solv}}}^ - } ) . On the other hand CO2 is not a scavenger of excited states of TP (1TP*, 3TP*), which in the reaction with triethylamine (TEA) leads to the formation of TP•−.

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来源期刊

Nukleonika 物理-无机化学与核化学

CiteScore

2.00

自引率

0.00%

发文量

审稿时长

4-8 weeks

期刊介绍： "Nukleonika" is an international peer-reviewed, scientific journal publishing original top quality papers on fundamental, experimental, applied and theoretical aspects of nuclear sciences. The fields of research include: radiochemistry, radiation measurements, application of radionuclides in various branches of science and technology, chemistry of f-block elements, radiation chemistry, radiation physics, activation analysis, nuclear medicine, radiobiology, radiation safety, nuclear industrial electronics, environmental protection, radioactive wastes, nuclear technologies in material and process engineering, radioisotope diagnostic methods of engineering objects, nuclear physics, nuclear reactors and nuclear power, reactor physics, nuclear safety, fuel cycle, reactor calculations, nuclear chemical engineering, nuclear fusion, plasma physics etc.