Experimental Methods: Generation of Cold Gas-Phase Molecules, Molecular Ions, Their Clusters, Metal Clusters, and Laser Spectroscopy

2019 ◽  
pp. 3-32 ◽  
Author(s):  
Takayuki Ebata ◽  
Yoshiya Inokuchi ◽  
Atsushi Nakajima
Keyword(s):  
Gas Phase ◽  
Laser Spectroscopy ◽  
Metal Clusters ◽  
Experimental Methods ◽  
Molecular Ions ◽  
Gas Phase Molecules ◽  
Cold Gas

scholarly journals Front Cover: Laser Spectroscopy and Lifetime Measurements of the S 1 State of Tetracyanoquinodimethane (TCNQ) in a Cold Gas‐Phase Free‐Jet (ChemPhysChem 8/2019)

ChemPhysChem ◽  
2019 ◽  
Vol 20 (8) ◽  
pp. 993-993
Author(s):  
Nobumasa Chaki ◽  
Satoru Muramatsu ◽  
Yuji Iida ◽  
Seiya Kenjo ◽  
Yoshiya Inokuchi ◽  
...  
Keyword(s):  
Gas Phase ◽  
Laser Spectroscopy ◽  
Lifetime Measurements ◽  
Front Cover ◽  
Free Jet ◽  
Cold Gas

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.

Laser Spectroscopy and Lifetime Measurements of the S 1 State of Tetracyanoquinodimethane (TCNQ) in a Cold Gas‐Phase Free‐Jet

ChemPhysChem ◽  
2019 ◽  
Vol 20 (8) ◽  
pp. 996-1000 ◽  
Author(s):  
Nobumasa Chaki ◽  
Satoru Muramatsu ◽  
Yuji Iida ◽  
Seiya Kenjo ◽  
Yoshiya Inokuchi ◽  
...  
Keyword(s):  
Gas Phase ◽  
Laser Spectroscopy ◽  
Lifetime Measurements ◽  
Free Jet ◽  
Cold Gas

scholarly journals Laser Spectroscopy and Lifetime Measurements of the S 1 State of Tetracyanoquinodimethane (TCNQ) in a Cold Gas‐Phase Free‐Jet

ChemPhysChem ◽  
2019 ◽  
Vol 20 (8) ◽  
pp. 995-995
Author(s):  
Nobumasa Chaki ◽  
Satoru Muramatsu ◽  
Yuji Iida ◽  
Seiya Kenjo ◽  
Yoshiya Inokuchi ◽  
...  
Keyword(s):  
Gas Phase ◽  
Laser Spectroscopy ◽  
Lifetime Measurements ◽  
Free Jet ◽  
Cold Gas

A new tandem mass spectrometer for photofragment spectroscopy of cold, gas-phase molecular ions

2010 ◽  
Vol 81 (7) ◽  
pp. 073107 ◽  
Author(s):  
Annette Svendsen ◽  
Ulrich J. Lorenz ◽  
Oleg V. Boyarkin ◽  
Thomas R. Rizzo
Keyword(s):  
Gas Phase ◽  
Mass Spectrometer ◽  
Molecular Ions ◽  
Tandem Mass ◽  
Tandem Mass Spectrometer ◽  
Cold Gas

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

Gas-Phase Anionic Metal Clusters are Model Systems for Surface Oxidation: Kinetics of the Reactions of Mn– with O2 (M = V, Cr, Co, Ni; n = 1–15)

2021 ◽  
Vol 125 (10) ◽  
pp. 2069-2076
Author(s):  
Brendan C. Sweeny ◽  
David C. McDonald ◽  
Nicholas S. Shuman ◽  
Albert A. Viggiano ◽  
Juergen Troe ◽  
...  
Keyword(s):  
Gas Phase ◽  
Oxidation Kinetics ◽  
Metal Clusters ◽  
Surface Oxidation ◽  
Model Systems ◽  
Kinetics Of
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