Non-reactive interaction of oxirane and hydrogen bromide: isolation of an oxirane–hydrogen bromide dimer in a supersonic jet and its characterisation by microwave spectroscopy

1990 ◽  
Vol 86 (24) ◽  
pp. 3975-3982 ◽  
Author(s):  
A. C. Legon ◽  
A. L. Wallwork
Keyword(s):  
Hydrogen Bromide ◽  
Supersonic Jet ◽  
Microwave Spectroscopy ◽  
Reactive Interaction

Gas phase observation and microwave spectroscopic characterization of formic sulfuric anhydride

Science ◽  
2015 ◽  
Vol 349 (6243) ◽  
pp. 58-61 ◽  
Author(s):  
Rebecca B. Mackenzie ◽  
Christopher T. Dewberry ◽  
Kenneth R. Leopold
Keyword(s):  
Gas Phase ◽  
Sulfur Trioxide ◽  
Density Functional ◽  
Supersonic Jet ◽  
Cycloaddition Reaction ◽  
Spectroscopic Characterization ◽  
Microwave Spectroscopy ◽  
Sulfuric Anhydride ◽  
Functional Theory

We report the observation of a covalently bound species, formic sulfuric anhydride (FSA), that is produced from formic acid and sulfur trioxide under supersonic jet conditions. FSA has been structurally characterized by means of microwave spectroscopy and further investigated by using density functional theory and ab initio calculations. Theory indicates that a π2 + π2 + σ2 cycloaddition reaction between SO3 and HCOOH is a plausible pathway to FSA formation and that such a mechanism would be effectively barrierless. We speculate on the possible role that FSA may play in the Earth’s atmosphere.

Supersonic jet spectrometry of chemical species resulting from thermal decomposition of polystyrene and polycarbonate

1992 ◽  
Vol 64 (19) ◽  
pp. 931A-940A ◽  
Author(s):  
Totaro Imasaka ◽  
Masami Hozumi ◽  
Nobuhiko Ishibashi
Keyword(s):  
Thermal Decomposition ◽  
Supersonic Jet ◽  
Chemical Species
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