Electron Attachment and Electron Ionization of Formic Acid Clusters Embedded in Helium Nanodroplets
Sign Up to like & getrecommendations! Published in 2019 at "Journal of the American Society for Mass Spectrometry"
DOI: 10.1007/s13361-018-02124-z
Abstract: AbstractWe report the results of an experimental study of electron ionization of large helium nanodroplets doped with formic acid (FA). Several homologous series of cluster anions are observed, including [FAn-H]−, undissociated FAn−, and these ions… read more here.
Keywords: electron attachment; acid clusters; formic acid; electron ionization ... See more keywords
London dispersion dominating diamantane packing in helium nanodroplets
Sign Up to like & getrecommendations! Published in 2021 at "Physical Chemistry Chemical Physics"
DOI: 10.1039/d1cp03380h
Abstract: Diamantane clusters formed inside superfluid helium nanodroplets were analyzed by time-of-flight mass spectrometry. Distinct cluster sizes were identified as “magic numbers” and the corresponding feasible structures for clusters consisting of up to 19 diamantane molecules… read more here.
Keywords: diamantane; london dispersion; dispersion; dispersion dominating ... See more keywords
Stabilization of phenanthrene anions in helium nanodroplets
Sign Up to like & getrecommendations! Published in 2022 at "Physical Chemistry Chemical Physics"
DOI: 10.1039/d2cp00991a
Abstract: It has been debated for years if the polycyclic aromatic hydrocarbon phenanthrene exists in its anionic form, or, in other words, if its electron affinity (EA) is positive or negative. In this contribution we confirm… read more here.
Keywords: phenanthrene anions; phenanthrene; stabilization phenanthrene; helium nanodroplets ... See more keywords
Helium nanodroplets as an efficient tool to investigate hydrogen attachment to alkali cations
Sign Up to like & getrecommendations! Published in 2022 at "Physical Chemistry Chemical Physics"
DOI: 10.1039/d2cp03841b
Abstract: We report a novel method to reversibly attach and detach hydrogen molecules to positively charged sodium clusters formed inside a helium nanodroplet host matrix. It is based on the controlled production of multiply charged helium… read more here.
Keywords: efficient tool; investigate hydrogen; hydrogen; tool investigate ... See more keywords
Autoionization dynamics of helium nanodroplets resonantly excited by intense XUV laser pulses
Sign Up to like & getrecommendations! Published in 2020 at "New Journal of Physics"
DOI: 10.1088/1367-2630/ab9554
Abstract: The ionization dynamics of helium droplets in a wide size range from 220 to 10^6 He atoms irradiated with intense femtosecond extreme ultraviolet (XUV) pulses of 10^9 {\div} 10^{12} W/cm2 power density is investigated in… read more here.
Keywords: autoionization dynamics; autoionization; dynamics helium; xuv ... See more keywords
Long-lasting XUV activation of helium nanodroplets for avalanche ionization
Sign Up to like & getrecommendations! Published in 2023 at "New Journal of Physics"
DOI: 10.1088/1367-2630/acd5f6
Abstract: We study the dynamics of avalanche ionization of pure helium nanodroplets activated by a weak extreme-ultraviolet (XUV) pulse and driven by an intense near-infrared (NIR) pulse. In addition to a transient enhancement of ignition of… read more here.
Keywords: avalanche ionization; long lasting; helium nanodroplets; activation ... See more keywords
Three-Dimensional Shapes of Spinning Helium Nanodroplets.
Sign Up to like & getrecommendations! Published in 2018 at "Physical review letters"
DOI: 10.1103/physrevlett.121.255301
Abstract: A significant fraction of superfluid helium nanodroplets produced in a free-jet expansion has been observed to gain high angular momentum resulting in large centrifugal deformation. We measured single-shot diffraction patterns of individual rotating helium nanodroplets… read more here.
Keywords: three dimensional; spinning helium; dimensional shapes; shapes spinning ... See more keywords
Femtosecond Rotational Dynamics of D_{2} Molecules in Superfluid Helium Nanodroplets.
Sign Up to like & getrecommendations! Published in 2022 at "Physical review letters"
DOI: 10.1103/physrevlett.128.243201
Abstract: Rotational dynamics of D_{2} molecules inside helium nanodroplets is induced by a moderately intense femtosecond pump pulse and measured as a function of time by recording the yield of HeD^{+} ions, created through strong-field dissociative… read more here.
Keywords: rotational dynamics; dynamics molecules; molecules superfluid; superfluid helium ... See more keywords
Submersion of rubidium clusters in helium nanodroplets
Sign Up to like & getrecommendations! Published in 2021 at "European Physical Journal D"
DOI: 10.1140/epjd/s10053-021-00112-9
Abstract: Alkali atoms and small clusters are known to reside on the surface of a helium droplet rather than its inside as most other dopant species. A theoretical investigation suggested that alkali clusters (Li–Rb) exceeding a… read more here.
Keywords: helium nanodroplets; submersion rubidium; clusters helium; submersion ... See more keywords