大超流氦滴中苯胺多光子电离的抑制
Suppression of Multiphoton Ionization of Aniline in Large Superfluid Helium Droplets.
作者信息
Alghamdi Maha, Zhang Jie, Bradford Stephen D, Kong Wei
机构信息
Department of Chemistry, Oregon State University, Corvallis, OR 97331-4003.
出版信息
Chem Phys Lett. 2019 Nov 16;735. doi: 10.1016/j.cplett.2019.136752. Epub 2019 Sep 9.
Abstract
We report suppression of multiphoton ionization (MPI) of aniline doped large superfluid helium droplets containing over 5 × 10 atoms. In contrast, surface-bound sodium atoms and dimers are readily desorbed and ionized. Adequacy of the experimental conditions is also confirmed from ejection of embedded aniline cations from smaller droplets containing multiple cations, and MPI of gaseous aniline. The photoelectrons have a mean-free-path of less than 1 nm and a thermalization distance of 10 nm. In a droplet with a diameter of over 70 nm, effective charge recombination within the droplet is expected.
摘要
我们报道了对含有超过5×10个原子的苯胺掺杂大超流氦滴的多光子电离（MPI）的抑制。相比之下，表面结合的钠原子和二聚体很容易解吸并被电离。从含有多个阳离子的较小液滴中喷射出嵌入的苯胺阳离子以及气态苯胺的MPI，也证实了实验条件的充分性。光电子的平均自由程小于1纳米，热化距离为10纳米。在直径超过70纳米的液滴中，预计液滴内会发生有效的电荷复合。
相似文献
1
Suppression of Multiphoton Ionization of Aniline in Large Superfluid Helium Droplets.大超流氦滴中苯胺多光子电离的抑制
Chem Phys Lett. 2019 Nov 16;735. doi: 10.1016/j.cplett.2019.136752. Epub 2019 Sep 9.
2
Electron impact ionization and multiphoton ionization of doped superfluid helium droplets: A comparison.掺杂超流氦滴的电子碰撞电离和多光子电离：比较
J Chem Phys. 2016 Feb 28;144(8):084302. doi: 10.1063/1.4942473.
3
Facile time-of-flight methods for characterizing pulsed superfluid helium droplet beams.用于表征脉冲超流氦滴束的简便飞行时间方法。
Rev Sci Instrum. 2015 Aug;86(8):084102. doi: 10.1063/1.4928107.
4
Doping with multiple cations and failure of charge transfer in large ionized helium droplets.掺杂多价阳离子和大离子化氦液滴中电荷转移失败。
J Chem Phys. 2019 Oct 7;151(13):134307. doi: 10.1063/1.5123735.
5
Electron Diffraction of Ionic Argon Nanoclusters Embedded in Superfluid Helium Droplets.嵌入超流氦滴中的离子氩纳米团簇的电子衍射
J Phys Chem Lett. 2021 Oct 7;12(39):9644-9650. doi: 10.1021/acs.jpclett.1c02712. Epub 2021 Sep 29.
6
Effective doping of low energy ions into superfluid helium droplets.将低能离子有效掺杂到超流氦液滴中。
J Chem Phys. 2015 Aug 21;143(7):074201. doi: 10.1063/1.4928689.
7
Doping of Green Fluorescent Protein into Superfluid Helium Droplets: Size and Velocity of Doped Droplets.将绿色荧光蛋白掺杂到超流氦滴中：掺杂液滴的尺寸和速度。
J Phys Chem A. 2017 Sep 14;121(36):6671-6678. doi: 10.1021/acs.jpca.7b05718. Epub 2017 Aug 31.
8
Effect of kinetic energy on the doping efficiency of cesium cations into superfluid helium droplets.动能对铯阳离子掺杂到超流氦滴中的效率的影响。
J Chem Phys. 2015 Jul 28;143(4):044310. doi: 10.1063/1.4927471.
9
Bimodal velocity and size distributions of pulsed superfluid helium droplet beams.脉冲超流氦滴束的双峰速度和尺寸分布。
J Chem Phys. 2021 Apr 7;154(13):134303. doi: 10.1063/5.0047158.
10
Electron diffraction as a structure tool for charged and neutral nanoclusters formed in superfluid helium droplets.电子衍射作为一种用于研究超流氦滴中形成的带电和中性纳米团簇结构的工具。
Phys Chem Chem Phys. 2022 Mar 16;24(11):6349-6362. doi: 10.1039/d2cp00048b.
引用本文的文献
1
Electron diffraction as a structure tool for charged and neutral nanoclusters formed in superfluid helium droplets.电子衍射作为一种用于研究超流氦滴中形成的带电和中性纳米团簇结构的工具。
Phys Chem Chem Phys. 2022 Mar 16;24(11):6349-6362. doi: 10.1039/d2cp00048b.
2
Electron Diffraction of Ionic Argon Nanoclusters Embedded in Superfluid Helium Droplets.嵌入超流氦滴中的离子氩纳米团簇的电子衍射
J Phys Chem Lett. 2021 Oct 7;12(39):9644-9650. doi: 10.1021/acs.jpclett.1c02712. Epub 2021 Sep 29.
3
Bimodal velocity and size distributions of pulsed superfluid helium droplet beams.脉冲超流氦滴束的双峰速度和尺寸分布。
J Chem Phys. 2021 Apr 7;154(13):134303. doi: 10.1063/5.0047158.
本文引用的文献
1
Doping with multiple cations and failure of charge transfer in large ionized helium droplets.掺杂多价阳离子和大离子化氦液滴中电荷转移失败。
J Chem Phys. 2019 Oct 7;151(13):134307. doi: 10.1063/1.5123735.
2
Evaporation Dynamics from Ag-Doped He Droplets upon Laser Excitation.
J Phys Chem A. 2019 Jul 18;123(28):5859-5865. doi: 10.1021/acs.jpca.9b02496. Epub 2019 Jul 5.
3
Doping of Green Fluorescent Protein into Superfluid Helium Droplets: Size and Velocity of Doped Droplets.将绿色荧光蛋白掺杂到超流氦滴中：掺杂液滴的尺寸和速度。
J Phys Chem A. 2017 Sep 14;121(36):6671-6678. doi: 10.1021/acs.jpca.7b05718. Epub 2017 Aug 31.
4
Self-Assembly of Iodine in Superfluid Helium Droplets: Halogen Bonds and Nanocrystals.超流氦液滴中碘的自组装：卤素键和纳米晶体。
Angew Chem Int Ed Engl. 2017 Mar 20;56(13):3541-3545. doi: 10.1002/anie.201611922. Epub 2017 Feb 21.
5
Electron impact ionization and multiphoton ionization of doped superfluid helium droplets: A comparison.掺杂超流氦滴的电子碰撞电离和多光子电离：比较
J Chem Phys. 2016 Feb 28;144(8):084302. doi: 10.1063/1.4942473.
6
Synthesis of nanoparticles in helium droplets-A characterization comparing mass-spectra and electron microscopy data.氦滴中纳米颗粒的合成——质谱与电子显微镜数据对比的表征
J Chem Phys. 2015 Oct 7;143(13):134201. doi: 10.1063/1.4932182.
7
Facile time-of-flight methods for characterizing pulsed superfluid helium droplet beams.用于表征脉冲超流氦滴束的简便飞行时间方法。
Rev Sci Instrum. 2015 Aug;86(8):084102. doi: 10.1063/1.4928107.
8
Effective doping of low energy ions into superfluid helium droplets.将低能离子有效掺杂到超流氦液滴中。
J Chem Phys. 2015 Aug 21;143(7):074201. doi: 10.1063/1.4928689.
9
Effect of kinetic energy on the doping efficiency of cesium cations into superfluid helium droplets.动能对铯阳离子掺杂到超流氦滴中的效率的影响。
J Chem Phys. 2015 Jul 28;143(4):044310. doi: 10.1063/1.4927471.
10
Preparation of ultrathin nanowires using superfluid helium droplets.使用超流氦液滴制备超薄纳米线。
Nano Lett. 2014 May 14;14(5):2902-6. doi: 10.1021/nl500946u. Epub 2014 Apr 21.
Zotero 插件