Search Results - "Kreckel, Holger"
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1
Imaging the Absolute Configuration of a Chiral Epoxide in the Gas Phase
Published in Science (American Association for the Advancement of Science) (29-11-2013)“…In chemistry and biology, chirality, or handedness, refers to molecules that exist in two spatial configurations that are incongruent mirror images of one…”
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2
Quantum-state-selective electron recombination studies suggest enhanced abundance of primordial HeH
Published in Science (American Association for the Advancement of Science) (16-08-2019)“…The epoch of first star formation in the early Universe was dominated by simple atomic and molecular species consisting mainly of two elements: hydrogen and…”
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3
Dissociative Recombination of Rotationally Cold OH+ and Its Implications for the Cosmic Ray Ionization Rate in Diffuse Clouds
Published in Astrophysical journal. Letters (01-10-2023)“…Abstract Observations of OH + are used to infer the interstellar cosmic ray ionization rate in diffuse atomic clouds, thereby constraining the propagation of…”
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4
Low temperature rates for key steps of interstellar gas-phase water formation
Published in Science advances (01-06-2018)“…The gas-phase formation of water molecules in the diffuse interstellar medium (ISM) proceeds mainly via a series of reactions involving the molecular ions OH ,…”
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5
Storage ring measurements of the dissociative recombination of H3
Published in Philosophical transactions of the Royal Society of London. Series A: Mathematical, physical, and engineering sciences (13-11-2012)“…The dissociative recombination (DR) of is a key process in interstellar chemistry. More than 30 experimental studies of the DR process have been published in…”
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6
Merged-Beams Study of the Reaction of Cold HD^{+} with C Atoms Reveals a Pronounced Intramolecular Kinetic Isotope Effect
Published in Physical review letters (14-06-2024)“…We present a merged-beams study of reactions between HD^{+} ions, stored in the Cryogenic Storage Ring (CSR), and laser-produced ground-term C atoms. The…”
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7
Understanding the temperatures of H 3 + and H 2 in diffuse interstellar sightlines
Published in Molecular physics (17-01-2024)Get full text
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8
An approach for multi-color action spectroscopy of highly excited states of H3
Published in Journal of molecular spectroscopy (01-04-2021)“…[Display omitted] •comprehensive model for multi-color action spectroscopy of triatomic hydrogen ions.•simulations performed for both cryogenic ion traps and…”
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9
Understanding the temperatures of H3 + and H2 in diffuse interstellar sightlines
Published in Molecular physics (17-01-2024)“…The triatomic hydrogen ion $ \mathrm {H}_3^+ $ H 3 + is one of the most important species for the gas phase chemistry of the interstellar medium. Observations…”
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10
An approach for multi-color action spectroscopy of highly excited states of H 3
Published in Journal of molecular spectroscopy (01-04-2021)Get full text
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11
Autodetachment of Diatomic Carbon Anions from Long-Lived High-Rotation Quartet States
Published in Physical review letters (01-11-2024)“…We show that strong molecular rotation drastically modifies the autodetachment of C 2 − ions in the lowest quartet electronic state a Σ u + 4 . In the…”
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12
Laser Probing of the Rotational Cooling of Molecular Ions by Electron Collisions
Published in Physical review letters (06-05-2022)“…We present state-selected measurements of rotational cooling and excitation rates of CH^{+} molecular ions by inelastic electron collisions. The experiments…”
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13
Experimental Determination of the Dissociative Recombination Rate Coefficient for Rotationally Cold CH+ and Its Implications for Diffuse Cloud Chemistry
Published in The Astrophysical journal (01-11-2022)“…Abstract Observations of CH + are used to trace the physical properties of diffuse clouds, but this requires an accurate understanding of the underlying CH +…”
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14
On the Ortho:Para Ratio of H+ 3 in Diffuse Molecular Clouds
Published in The Astrophysical journal (01-03-2011)“…The excitation temperature T 01 derived from the relative intensities of the J = 0 (para) and J = 1 (ortho) rotational levels of H2 has been assumed to be an…”
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15
Coulomb Explosion Imaged Cryptochiral (R,R)-2,3-Dideuterooxirane: Unambiguous Access to the Absolute Configuration of (+)-Glyceraldehyde
Published in Chemistry : a European journal (05-05-2014)“…The absolute configuration of (R,R)‐2,3‐dideuterooxirane, which has been independently determined using Coulomb explosion imaging, has been unambiguously…”
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16
Storage ring measurements of the dissociative recombination of H 3
Published in Philosophical transactions of the Royal Society of London. Series A: Mathematical, physical, and engineering sciences (13-11-2012)“…The dissociative recombination (DR) of is a key process in interstellar chemistry. More than 30 experimental studies of the DR process have been published in…”
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17
Storage ring measurements of the dissociative recombination of${\rm{H}}_{\rm{3}}^{\rm{ + }}
Published in Philosophical transactions of the Royal Society of London. Series A: Mathematical, physical, and engineering sciences (13-11-2012)“…The dissociative recombination (DR) of ${\rm{H}}_{\rm{3}}^{\rm{ + }}$ is a key process in interstellar chemistry. More than 30 experimental studies of the DR…”
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18
Velocity Map Imaging with No Spherical Aberrations
Published 02-08-2023“…Velocity map imaging (VMI) is a powerful technique that allows to infer the kinetic energy of ions or electrons that are produced from a large volume in space…”
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19
Understanding the temperatures of H3+ and H2 in diffuse interstellar sightlines
Published 28-03-2023“…The triatomic hydrogen ion H3+ is one of the most important species for the gas phase chemistry of the interstellar medium. Observations of H3+ are used to…”
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20
Autodetachment of diatomic carbon anions from long-lived high-rotation quartet states
Published 17-09-2024“…Phys. Rev. Lett. 133, 183001 (2024) Highly excited C$_2{}^{-}$ ions prominently feature electron detachment at a mean decay time near 3 milliseconds with…”
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