Zobrazeno 1 - 10
of 46
pro vyhledávání: '"John E. Chateauneuf"'
Publikováno v:
The Journal of Physical Chemistry A. 107:11043-11048
Reactions involving hydrogen abstraction by hydroxyl radical are an important class of reactions in subcritical and supercritical oxidation in water. However, the rates of individual hydrogen abstraction reactions are not available in the literature
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::55f323d3a6e78a871d61737b336d3c63
https://doi.org/10.1021/jp036179s
https://doi.org/10.1021/jp036179s
Publikováno v:
Advances in Environmental Research. 6:487-493
We present our initial results on the use of supercritical carbon dioxide as both a reactant and as a reaction medium to photo-chemically produce carboxylic acids from polycyclic aromatic hydrocarbons via radical anion intermediates. In the present w
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ea5a680af5c14805229c75724483aa64
https://doi.org/10.1016/s1093-0191(01)00075-2
https://doi.org/10.1016/s1093-0191(01)00075-2
Publikováno v:
The Journal of Physical Chemistry A. 105:8046-8052
The ability of subcritical water to support ionic chemistry is evident from the successful generation of 9-R-xanthenium (R = H and C6H5) carbocations at temperatures up to 330 °C from their respective alcohol precursors using laser flash photolysis.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::dd3f8f68e4d28cfe2b7ec39531726a92
https://doi.org/10.1021/jp010915f
https://doi.org/10.1021/jp010915f
Publikováno v:
Industrial & Engineering Chemistry Research. 39:3090-3096
We report on the solvent effect on a kinetic-controlled energy-transfer reaction in super- and subcritical ethane. The reaction chosen, the quenching of naphthalene fluorescence by C2H5Br, occurs well below the diffusion-controlled limit in liquid so
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a0f05bc768f0ef7874d3be8a189264d1
https://doi.org/10.1021/ie000057u
https://doi.org/10.1021/ie000057u
Autor:
Junbo Feng, Karen A. Connery, Mary J. Kremer, Matthew M. DiPippo, John E. Chateauneuf, Joan F. Brennecke
Publikováno v:
The Journal of Physical Chemistry A. 103:6591-6598
The effects of the supercritical water environment on the triplet−triplet annihilation of anthracene, a simple, well-characterized reaction that is known to be diffusion controlled in normal liquids, was investigated at temperatures from 375 to 450
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::20309527f96fad47a75c3854bfebf01f
https://doi.org/10.1021/jp991097i
https://doi.org/10.1021/jp991097i
Autor:
Mary J. Kremer, Daniel P. Roek, John E. Chateauneuf, Christopher B. Roberts, Joan F. Brennecke
Publikováno v:
Fluid Phase Equilibria. :713-722
A number of studies have shown that the local environmental around dissolved solutes in supercritical fluids (SCFs) is significantly different than the bulk. Moreover, in SCF mixtures, there is evidence that the local composition around a dilute solu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5abb2750efaa636ff39d1eec7d485c95
https://doi.org/10.1016/s0378-3812(99)00104-1
https://doi.org/10.1016/s0378-3812(99)00104-1
Autor:
Joan F. Brennecke, John E. Chateauneuf
Publikováno v:
Chemical Reviews. 99:433-452
An interesting and intriguing aspect of supercritical fluid solutions is their microscopic inhomogeneities. The most well-known of these are the long-range densities fluctuations that occur in a pure fluid at conditions close to the critical point. H
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::26fc4da4f3d5774d41aec42e6ef50c13
https://doi.org/10.1021/cr970035q
https://doi.org/10.1021/cr970035q
Autor:
Keith A. Horn, John E. Chateauneuf
Publikováno v:
Research on Chemical Intermediates. 25:925-949
Laser flash photolysis (LFP) and product analysis have been used to characterize 2-naphthylcarbene (2-NC) reactivity in solution. Absolute kinetics of 2-NC have been obtained by monitoring the electronic absorption of 2-NC at 362 nm following LFP of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6f25856c6b344c7ae7ec189efc3be220
https://doi.org/10.1163/156856799x00167
https://doi.org/10.1163/156856799x00167
Publikováno v:
The Journal of Physical Chemistry. 100:12394-12402
Pulse radiolysis has been used to measure the influence of supercritical fluid and cosolvent solvation on arylmethyl cation reactivity in supercritical fluoroform (CHF3) and ethane (C2H6). Ion−neutral reactivity was investigated for the reaction of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::36053a584f1256d5fcf7fe7f202cd064
https://doi.org/10.1021/jp961033x
https://doi.org/10.1021/jp961033x
Publikováno v:
AIChE Journal. 41:1306-1318
Laser flash photolysis of the hydrogen abstraction reaction of triplet benzophenone ({sup 3}BP) from 2-propanol and 1,4-cyclohexadiene in supercritical ethane and fluoroform was investigated. Bimolecular rate constants based on bulk concentrations de
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e5a5116a823d9bb2e514ea9f12f98ad2
https://doi.org/10.1002/aic.690410525
https://doi.org/10.1002/aic.690410525