Gas Phase Reactions of Fluorine Atoms

1973 ◽  
Vol 51 (12) ◽  
pp. 2041-2046 ◽  
Author(s):  
Thomas Long Pollock ◽  
William Ernest Jones
Keyword(s):  
Nitric Oxide ◽  
Gas Phase ◽  
Flow System ◽  
Fluid Mixing ◽  
Gas Phase Reactions ◽  
Rate Of Reaction ◽  
Chemiluminescent Reaction

The rate of reaction of F atoms with a series of compounds, CH4, CH3F, CH2F2, CHF3, CHClF2, HCl, CBrF3, NH3, and PH3 has been determined relative to the chemiluminescent reaction[Formula: see text]by photometry. The fluorine atoms were produced in a flow system from the fluid mixing of molecular fluorine and nitric oxide diluted with argon.

Gas-phase reactions of nitric oxide with atomic lanthanide cations: Room-temperature kinetics and periodicity in reactivity

2006 ◽  
Vol 249-250 ◽  
pp. 385-391 ◽  
Author(s):  
Voislav Blagojevic ◽  
Eric Flaim ◽  
Michael J.Y. Jarvis ◽  
Gregory K. Koyanagi ◽  
Diethard K. Bohme
Keyword(s):  
Nitric Oxide ◽  
Gas Phase ◽  
Room Temperature ◽  
Gas Phase Reactions ◽  
Lanthanide Cations

scholarly journals The HNO− radical anion: A proposed intermediate in diazeniumdiolate synthesis using nitric oxide and alkoxides

2018 ◽  
Vol 25 (1) ◽  
pp. 82-85 ◽  
Author(s):  
Zhe-Chen Wang ◽  
Ya-Ke Li ◽  
Sheng-Gui He ◽  
Veronica M Bierbaum
Keyword(s):  
Nitric Oxide ◽  
Reaction Mechanism ◽  
Gas Phase ◽  
Radical Anion ◽  
Room Temperature ◽  
Hydrogen Transfer ◽  
Gas Phase Reactions ◽  
Ionic Product

The strategy of synthesizing diazeniumdiolates (X–N(O)=NO−) through the coexistence of nitric oxide and alkoxides (RO−) was introduced by Wilhelm Traube 120 years ago. Today, despite the wide use of diazeniumdiolate derivatives to release nitric oxide in the treatment of cancer, the first step of the reaction mechanism for diazeniumdiolate synthesis remains a mystery and is thought to be complex. We have studied the gas-phase reactions of nitric oxide with alkoxides at room temperature. An electron-coupled hydrogen transfer is observed, and the radical anion HNO− is the only ionic product in these reactions. HNO− can further react with nitric oxide to form N2O and HO−.

Gasphasen-Reaktionen, 58 [1, 2] β-Chlorethylazid: HCl-Eliminierung und Pyrolyse / Gas Phase Reactions, 58 [1, 2] β-Chloroethyl Azide: HCl Elimination and Pyrolysis

1987 ◽  
Vol 42 (3) ◽  
pp. 301-307 ◽  
Author(s):  
Hans Bock ◽  
Ralph Dammel
Keyword(s):  
Real Time ◽  
Gas Phase ◽  
Flow System ◽  
Chemical Activation ◽  
Thermolysis Product ◽  
Low Pressure ◽  
Gas Analysis ◽  
Gas Phase Reactions ◽  
Pressure Flow ◽  
By Products

The HCl elimination from β-chloroethyl azide (1-azido-2-chloroethane) over potassium tert. butanolate at 350 K in a low pressure flow system is optimized using PE spectroscopic real-time gas analysis. The highly explosive vinyl azide formed can be purified by cool-trapping the by-products. Its subsequent and virtually hazard-free pyrolysis yields 2H-azirine, which can be isolated at temperatures below 240 K.In contrast, the direct pyrolysis of β-chloroethyl azide requires temperatures above 710 K and results in a simultaneous split-off of both HCl and N2, yielding acetonitrile as the main thermolysis product. No intermediates such as β-chloroethanimine or ketenimine are observed, a result which is interpreted in terms of chemical activation

Si+ and SiO+ reactions of atmospheric importance

1969 ◽  
Vol 47 (10) ◽  
pp. 1808-1809 ◽  
Author(s):  
F. C. Fehsenfeld
Keyword(s):  
Gas Phase ◽  
Rate Constants ◽  
Flow System ◽  
Gas Phase Reactions ◽  
Approximate Rate

Flow system measurements are reported of the approximate rate constants for the gas phase reactions Si+ + O2 → SiO+ + O, SiO+ + N → Si+ + NO or NO+ + Si, and SiO+ + O → Si+ + O2. The constants are, respectively, <10−11, ∼1.5 × 10−10, ∼1.5 × 10−10, and 2 × 10−10, all in cm3 s−1.

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