Radiation less transitions in gas phase molecular ions

1980 ◽  
Vol 77 ◽  
pp. 705-718 ◽  
Author(s):  
Sydney Leach ◽  
Gérald Dujardin ◽  
Guy Taieb
Keyword(s):  
Gas Phase ◽  
Molecular Ions

Linear free energy relationships in CN bond dissociations in molecular ions of 4-substitutedN-(2-furylmethyl)anilines in the gas phase

2007 ◽  
Vol 42 (11) ◽  
pp. 1496-1503 ◽  
Author(s):  
Eduardo A. Solano Espinoza ◽  
Elena Stashenko ◽  
Jairo Martínez ◽  
Uriel Mora ◽  
Vladimir Kouznetsov
Keyword(s):  
Free Energy ◽  
Gas Phase ◽  
Molecular Ions ◽  
Linear Free Energy Relationships ◽  
Linear Free Energy ◽  
Energy Relationships

scholarly journals Stability of Odd- Versus Even-Electron Gas-Phase (Quasi)Molecular Ions Derived from Pyridine-Substituted N-Heterotriangulenes

ChemPlusChem ◽  
2016 ◽  
Vol 82 (2) ◽  
pp. 204-211 ◽  
Author(s):  
Jakob F. Hitzenberger ◽  
Pavlo O. Dral ◽  
Ute Meinhardt ◽  
Timothy Clark ◽  
Walter Thiel ◽  
...  
Keyword(s):  
Gas Phase ◽  
Electron Gas ◽  
Molecular Ions

Formation of Highly Charged Quasi-Molecular Ions of a Polycationic [60]Fullerene Hexakis-Adduct and Their Fragmentation Behavior in the Gas Phase

2015 ◽  
Vol 2015 (10) ◽  
pp. 2282-2290 ◽  
Author(s):  
Jing Li ◽  
Leanne C. Nye ◽  
Lennard K. Wasserthal ◽  
Chau Vinh ◽  
Rolf W. Kirschbaum ◽  
...  
Keyword(s):  
Gas Phase ◽  
Molecular Ions ◽  
Fragmentation Behavior

scholarly journals Chemical Models of Collapsing Envelopes

2000 ◽  
Vol 197 ◽  
pp. 51-60
Author(s):  
Edwin A. Bergin
Keyword(s):  
Star Formation ◽  
Gas Phase ◽  
Chemical Evolution ◽  
Molecular Ions ◽  
Polar Molecules ◽  
Mass Star ◽  
Chemical Models ◽  
Gas Phase Molecules ◽  
Low Mass

We discuss recent models of chemical evolution in the developing and collapsing protostellar envelopes associated with low-mass star formation. In particular, the effects of depletion of gas-phase molecules onto grain surfaces is considered. We show that during the middle to late evolutionary stages, prior to the formation of a protostar, various species selectively deplete from the gas phase. The principal pattern of selective depletions is the depletion of sulfur-bearing molecules relative to nitrogen-bearing species: NH3 and N2H+. This pattern is shown to be insensitive to the details of the dynamics and marginally sensitive to whether the grain mantle is dominated by polar or non-polar molecules. Based on these results we suggest that molecular ions are good tracers of collapsing envelopes. The effects of coupling chemistry and dynamics on the resulting physical evolution are also examined. Particular attention is paid to comparisons between models and observations.

scholarly journals The kinetics and product state distributions from gas-phase reactions of small atomic and molecular cations with C2H4, C2H3F, 1,1-C2H2F2, C2HF3and C2F4

2014 ◽  
Vol 16 (8) ◽  
pp. 3726-3738
Author(s):  
Michael A. Parkes ◽  
Matthew J. Simpson ◽  
Victor Mikhailov ◽  
Richard P. Tuckett
Keyword(s):  
Gas Phase ◽  
Molecular Ions ◽  
Product State ◽  
Gas Phase Reactions ◽  
Flow Tube ◽  
Ion Flow ◽  
Selected Ion Flow Tube ◽  
Molecular Cations

Reactions between atomic and small molecular ions with a series of fluorinated ethenes are studied in a selected ion flow tube. Kinetics and product state distributions are measured. The latter are compared with those from photoionisation.

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