Diffusion and surface quenching of the triplet state of aromatic hydrocarbons in the gas phase

1965 ◽  
pp. 18
Author(s):  
B. Stevens ◽  
M. S. Walker
Keyword(s):  
Triplet State ◽  
Gas Phase ◽  
Aromatic Hydrocarbons ◽  
Surface Quenching

High-Loading Crystals of Tetraaryladamantanes and the Uptake and Release of Aromatic Hydrocarbons from the Gas Phase

2017 ◽  
Vol 23 (38) ◽  
pp. 9018-9021 ◽  
Author(s):  
Pierre-Emmanuel Alexandre ◽  
Alexander Schwenger ◽  
Wolfgang Frey ◽  
Clemens Richert
Keyword(s):  
Gas Phase ◽  
Aromatic Hydrocarbons ◽  
High Loading ◽  
Uptake And Release

The gas phase reactivity of the dimethylchloronium ion with alkylbenzenes

1981 ◽  
Vol 59 (15) ◽  
pp. 2412-2416 ◽  
Author(s):  
John A. Stone ◽  
Margaret S. Lin ◽  
Jeffrey Varah
Keyword(s):  
High Pressure ◽  
Gas Phase ◽  
Mass Spectrometer ◽  
Aromatic Hydrocarbons ◽  
Relative Rate ◽  
Ion Source ◽  
Nucleophilic Displacement ◽  
Rate Of Reaction ◽  
Displacement Reactions ◽  
Bonded Complexes

The reactivity of the dimethylchloronium ion with a series of aromatic hydrocarbons has been studied in a high pressure mass spectrometer ion source using the technique of reactant ion monitoring. Benzene is unreactive but all others, from toluene to mesitylene, react by CH3+ transfer to yield σ-bonded complexes. The relative rate of reaction increases with increasing exothermicity in line with current theories of nucleophilic displacement reactions.

Bimolecular Ionization of the Triplet State of Aromatic Hydrocarbons in Solution

1968 ◽  
Vol 49 (4) ◽  
pp. 1577-1587 ◽  
Author(s):  
L. P. Gary ◽  
Klaas de Groot ◽  
R. C. Jarnagin
Keyword(s):  
Triplet State ◽  
Aromatic Hydrocarbons

The polymerization of styrene sensitized by molecules in the triplet state II. Kinetics and mechanism

1959 ◽  
Vol 251 (1264) ◽  
pp. 4-26 ◽  
Keyword(s):  
Triplet State ◽  
Aromatic Hydrocarbons ◽  
Flash Photolysis ◽  
Radical Addition ◽  
Photochemical Reactions ◽  
Kinetics And Mechanism ◽  
Qualitative Investigation ◽  
Initiation Mechanism ◽  
Initial Formation ◽  
Mechanism Of The Reaction

The kinetics and mechanism of the reaction between anthracene and styrene have been fully investigated. By means of flash photolysis techniques, it has been confirmed that it is the triplet state of anthracene which sensitizes the polymerization. It has also been shown that both triplet and unexcited singlet anthracene copolymerize with styrene, the former with a zero activation energy. The work has been extended to the polymerizations sensitized by pyrene and chrysene, and to the unsensitized photopolymerization of styrene. It has been shown that in every case an initiation mechanism, involving the initial formation of a triplet-monomer complex, satisfactorily explains the observed results. The copolymerization rates of pyrene and chrysene were undetectable; these results, coupled with those obtained for the copolymerization of anthracene with styrene, are in agreement with the conclusions of Kooyman & Farenhorst, Szwarc, and others, concerning the reactivity of olefinic and aromatic hydrocarbons to radical addition. Finally, a qualitative investigation of the photochemical reactions between the sensitizers, and cumene and 9 .10-dihydroanthracene, has been made.

scholarly journals Study of passive sampling of polycyclic aromatic hydrocarbons in gas phase using Amberlite XAD resins as filling materials of semipermeable membranes

2013 ◽  
Vol 110 ◽  
pp. 494-500 ◽  
Author(s):  
Luis Gustavo T. dos Reis ◽  
Daniel Gallart-Mateu ◽  
Wagner F. Pacheco ◽  
Agustín Pastor ◽  
Miguel de la Guardia ◽  
...  
Keyword(s):  
Polycyclic Aromatic Hydrocarbons ◽  
Gas Phase ◽  
Aromatic Hydrocarbons ◽  
Passive Sampling ◽  
Semipermeable Membranes ◽  
Filling Materials ◽  
Polycyclic Aromatic ◽  
Xad Resins
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