Zobrazeno 1 - 10
of 13
pro vyhledávání: '"Stefan Bergmeister"'
Publikováno v:
Advanced Science, Vol 11, Iss 12, Pp n/a-n/a (2024)
Abstract Research into and applications of phthalocyanines (Pc) are mostly connected to their intriguing electronic properties. Here, messenger‐type UV–vis spectroscopy of two metal‐free ions from the phthalocyanine family, cationic H2Pc+ and H
Externí odkaz:
https://doaj.org/article/f800116d84b34cce8e45fb5b526c4ab9
Autor:
Stefan Bergmeister, Siegfried Kollotzek, Florent Calvo, Elisabeth Gruber, Fabio Zappa, Paul Scheier, Olof Echt
Publikováno v:
Molecules, Vol 27, Iss 15, p 4937 (2022)
The adsorption of helium or hydrogen on cationic triphenylene (TPL, C18H12), a planar polycyclic aromatic hydrocarbon (PAH) molecule, and of helium on cationic 1,3,5-triphenylbenzene (TPB, C24H18), a propeller-shaped PAH, is studied by a combination
Externí odkaz:
https://doaj.org/article/99ccd83cc359495fb3f3ac22a1ebccb1
Autor:
Stefan Bergmeister, Lisa Ganner, Johannes Locher, Fabio Zappa, Paul Scheier, Elisabeth Gruber
Publikováno v:
Review of Scientific Instruments. 94
In this contribution, we present an efficient and alternative method to the commonly used RF-multipole trap technique to produce He-tagged molecular ions at cryogenic temperatures, which are perfectly suitable for messenger spectroscopy. The seeding
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f98bd07dc81112f2b5d487779dba40c7
https://doi.org/10.1063/5.0144239
https://doi.org/10.1063/5.0144239
Phenanthrene: establishing lower and upper bounds to the binding energy of a very weakly bound anion
Autor:
Elisabeth Gruber, Siegfried Kollotzek, Stefan Bergmeister, Fabio Zappa, Milan Ončák, Paul Scheier, Olof Echt
Publikováno v:
Physical Chemistry Chemical Physics. 24:5138-5143
Quite a few molecules do not form stable anions that survive the time needed for their detection; their electron affinities (EA) are either very small or negative. How does one measure the EA if the anion cannot be observed? Or, at least, can one est
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b990711199d51e51b108a8f137931f6b
https://doi.org/10.1039/d1cp04755h
https://doi.org/10.1039/d1cp04755h
Autor:
Eva Zunzunegui-Bru, Elisabeth Gruber, Teresa Lázaro, Massimiliano Bartolomei, Marta I. Hernández, José Campos-Martínez, Tomás González-Lezana, Stefan Bergmeister, Fabio Zappa, Paul Scheier, Ricardo Pérez de Tudela, Javier Hernández-Rojas, José Bretón
Publikováno v:
The Journal of Physical Chemistry Letters, 14 (13)
In this Letter, we report the experimental detection of likely the largest ordered structure of helium atoms surrounding a monatomic impurity observed to date using a recently developed technique. The mass spectrometry investigation of HeNCa2+ cluste
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::eca1901ed80c27165fdd82928829d0bb
Autor:
Andriy, Pysanenko, Ivo S, Vinklárek, Juraj, Fedor, Michal, Fárník, Stefan, Bergmeister, Vojtech, Kostal, Tatiana, Nemirovich, Pavel, Jungwirth
Publikováno v:
The Journal of chemical physics. 157(22)
It is well established that an isolated benzene radical anion is not electronically stable. In the present study, we experimentally show that electron attachment to benzene clusters leads to weak albeit unequivocal occurrence of a C
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid________::894d42f488485e84338615e3a7b62472
https://pubmed.ncbi.nlm.nih.gov/36546796
https://pubmed.ncbi.nlm.nih.gov/36546796
Publikováno v:
Physical chemistry chemical physics : PCCP. 24(44)
Ammonia clusters are doped with benzene molecules in a pickup experiment, and slow electrons are attached to the pure and doped clusters. Generation of solvated electron and stabilization of a benzene radical anion is demonstrated.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ab8d62f358125bcc13e587ea7bdd5858
https://pubmed.ncbi.nlm.nih.gov/36342373
https://pubmed.ncbi.nlm.nih.gov/36342373
Autor:
Paul Scheier, Olof Echt, Paul Martini, Simon Albertini, Stefan Bergmeister, Felix Laimer, Elisabeth Gruber, Milan Ončák, Fabio Zappa
Publikováno v:
The Journal of Physical Chemistry Letters
There are myriad ions that are deemed too short-lived to be experimentally accessible. One of them is SF6+. It has never been observed, although not for lack of trying. We demonstrate that long-lived SF6+ can be formed by doping charged helium nanodr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8cc4d2b01e4b6ba14d33ae57dba0a236
http://europepmc.org/articles/PMC8154854
http://europepmc.org/articles/PMC8154854
Autor:
Siegfried Kollotzek, Farhad Izadi, Miriam Meyer, Stefan Bergmeister, Fabio Zappa, Stephan Denifl, Olof Echt, Paul Scheier, Elisabeth Gruber
Publikováno v:
Physical chemistry chemical physics : PCCP. 24(19)
Phenanthrene anions are stabilized in the ultracold environment of helium nanodroplets. Gentle shrinking of the helium matrix by collisions with helium gas makes the bare phenanthrene anion visible by high-resolution mass spectrometry.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::df08aaf41098a5a6da2b8ba3ac75bf5e
https://pubmed.ncbi.nlm.nih.gov/35507430
https://pubmed.ncbi.nlm.nih.gov/35507430
Autor:
Eva, Zunzunegui-Bru, Elisabeth, Gruber, Stefan, Bergmeister, Miriam, Meyer, Fabio, Zappa, Massimiliano, Bartolomei, Fernando, Pirani, Pablo, Villarreal, Tomás, González-Lezana, Paul, Scheier
Publikováno v:
Physical chemistry chemical physics : PCCP. 24(4)
Helium clusters around the recently experimentally observed sulphur hexafluoride SF
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid________::46bc0d3a6b9c3fe74b6bb3fc96776a76
https://pubmed.ncbi.nlm.nih.gov/35022639
https://pubmed.ncbi.nlm.nih.gov/35022639