Helium Hydride Ion

1933 ◽  
Vol 1 (12) ◽  
pp. 886-887 ◽  
Author(s):  
George Glockler ◽  
D. L. Fuller
Keyword(s):  
Hydride Ion ◽  
Helium Hydride

Ground State of the Helium Hydride Ion

1955 ◽  
Vol 23 (6) ◽  
pp. 1169-1170 ◽  
Author(s):  
Arthur A. Evett
Keyword(s):  
Ground State ◽  
Hydride Ion ◽  
Helium Hydride

scholarly journals Quantum-state–selective electron recombination studies suggest enhanced abundance of primordial HeH+

Science ◽  
2019 ◽  
Vol 365 (6454) ◽  
pp. 676-679 ◽  
Author(s):  
Oldřich Novotný ◽  
Patrick Wilhelm ◽  
Daniel Paul ◽  
Ábel Kálosi ◽  
Sunny Saurabh ◽  
...  
Keyword(s):  
Galaxy Formation ◽  
Dissociative Recombination ◽  
Molecular Ions ◽  
Rate Coefficients ◽  
Specific Rate ◽  
Electron Recombination ◽  
Recombination Rates ◽  
Rotational States ◽  
Hydride Ion ◽  
Helium Hydride

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 helium. Gaining insight into this constitutive era requires a thorough understanding of molecular reactivity under primordial conditions. We used a cryogenic ion storage ring combined with a merged electron beam to measure state-specific rate coefficients of dissociative recombination, a process by which electrons destroy molecular ions. We found a pronounced decrease of the electron recombination rates for the lowest rotational states of the helium hydride ion (HeH+), compared with previous measurements at room temperature. The reduced destruction of cold HeH+ translates into an enhanced abundance of this primordial molecule at redshifts of first star and galaxy formation.

scholarly journals Astrophysical detection of the helium hydride ion HeH+

Nature ◽  
2019 ◽  
Vol 568 (7752) ◽  
pp. 357-359 ◽  
Author(s):  
Rolf Güsten ◽  
Helmut Wiesemeyer ◽  
David Neufeld ◽  
Karl M. Menten ◽  
Urs U. Graf ◽  
...  
Keyword(s):  
Hydride Ion ◽  
Helium Hydride

Ground State of the Helium‐Hydride Ion

1956 ◽  
Vol 24 (1) ◽  
pp. 150-152 ◽  
Author(s):  
Arthur A. Evett
Keyword(s):  
Ground State ◽  
Hydride Ion ◽  
Helium Hydride

Rovibrational levels of helium hydride ion

2012 ◽  
Vol 137 (20) ◽  
pp. 204314 ◽  
Author(s):  
Krzysztof Pachucki ◽  
Jacek Komasa
Keyword(s):  
Hydride Ion ◽  
Helium Hydride

scholarly journals Detection of Vibrational Emissions from the Helium Hydride Ion (HeH+) in the Planetary Nebula NGC 7027

2020 ◽  
Vol 894 (1) ◽  
pp. 37 ◽  
Author(s):  
David A. Neufeld ◽  
Miwa Goto ◽  
T. R. Geballe ◽  
Rolf Güsten ◽  
Karl M. Menten ◽  
...  
Keyword(s):  
Planetary Nebula ◽  
Hydride Ion ◽  
Ngc 7027 ◽  
Helium Hydride

scholarly journals Kinetics and Mechanism of the Oxidation of Substituted Benzaldehydes by Oxo(salen)manganese(v) Complexes

1999 ◽  
Vol 23 (8) ◽  
pp. 480-481
Author(s):  
Varsha Bansal ◽  
Pradeep K. Sharma ◽  
Kalyan K. Banerji
Keyword(s):  
Hydrogen Atom ◽  
Hydrogen Atom Transfer ◽  
Kinetics And Mechanism ◽  
Atom Transfer ◽  
Ion Transfer ◽  
Hydride Ion ◽  
Substituted Benzaldehydes ◽  
Hydride Ion Transfer

The oxidation of benzaldehyde by oxo(salen)manganese(v) complexes proceeds via either a hydride-ion transfer or a hydrogen-atom transfer from the aldehyde to the manganese(v) complex.

Comparison of Thermodynamic, Kinetic Forces for Three NADH Analogues to Release Hydride Ion or Hydrogen Atom in Acetonitrile

2021 ◽  
Vol 6 (31) ◽  
pp. 8007-8010
Author(s):  
Yan‐Hua Fu ◽  
Guang‐Bin Shen ◽  
Kai Wang ◽  
Xiao‐Qing Zhu
Keyword(s):  
Hydrogen Atom ◽  
Hydride Ion
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