Gas-Phase Ozonolysis of Alkenes:  Formation of OH from Anti Carbonyl Oxides

2002 ◽  
Vol 124 (29) ◽  
pp. 8518-8519 ◽  
Author(s):  
Jesse H. Kroll ◽  
Neil M. Donahue ◽  
Victor J. Cee ◽  
Kenneth L. Demerjian ◽  
James G. Anderson
Keyword(s):  
Gas Phase ◽  
Carbonyl Oxides

Formation of OH radicals in the gas phase ozonolysis of alkenes: the unexpected role of carbonyl oxides

1996 ◽  
Vol 252 (3-4) ◽  
pp. 221-229 ◽  
Author(s):  
Roland Gutbrod ◽  
Ralph N. Schindler ◽  
Elfi Kraka ◽  
Dieter Cremer
Keyword(s):  
Gas Phase ◽  
Oh Radicals ◽  
Carbonyl Oxides

Mechanism of HOxFormation in the Gas-Phase Ozone-Alkene Reaction. 2. Prompt versus Thermal Dissociation of Carbonyl Oxides to Form OH

2001 ◽  
Vol 105 (18) ◽  
pp. 4446-4457 ◽  
Author(s):  
Jesse H. Kroll ◽  
Shailesh R. Sahay ◽  
James G. Anderson ◽  
Kenneth L. Demerjian ◽  
Neil M. Donahue
Keyword(s):  
Gas Phase ◽  
Thermal Dissociation ◽  
Carbonyl Oxides

High resolution absolute absorption cross sections of the B̃1A′–X̃1A′ transition of the CH2OO biradical

2015 ◽  
Vol 17 (48) ◽  
pp. 32539-32546 ◽  
Author(s):  
Elizabeth S. Foreman ◽  
Kara M. Kapnas ◽  
YiTien Jou ◽  
Jarosław Kalinowski ◽  
David Feng ◽  
...  
Keyword(s):  
High Resolution ◽  
Gas Phase ◽  
Urban Area ◽  
Cross Sections ◽  
Atmospheric Chemistry ◽  
Pivotal Role ◽  
Absorption Cross ◽  
Night Time ◽  
Carbonyl Oxides ◽  
Criegee Intermediates

Carbonyl oxides, or Criegee intermediates, are formed from the gas phase ozonolysis of alkenes and play a pivotal role in night-time and urban area atmospheric chemistry.

Residual Gas Reactions in the Electron Microscope: I. Qualitative Observations on the Water Gas Reaction

1968 ◽  
Vol 26 ◽  
pp. 292-293
Author(s):  
Richard E. Hartman ◽  
Roberta S. Hartman ◽  
Peter L. Ramos
Keyword(s):  
Electron Beam ◽  
Electron Microscope ◽  
Gas Phase ◽  
Absolute Temperature ◽  
Residual Gas ◽  
Gas Reactions ◽  
Image Position ◽  
The Right ◽  
Water Gas ◽  
Thinning Rate

The action of water and the electron beam on organic specimens in the electron microscope results in the removal of oxidizable material (primarily hydrogen and carbon) by reactions similar to the water gas reaction .which has the form:The energy required to force the reaction to the right is supplied by the interaction of the electron beam with the specimen.The mass of water striking the specimen is given by:where u = gH2O/cm2 sec, PH2O = partial pressure of water in Torr, & T = absolute temperature of the gas phase. If it is assumed that mass is removed from the specimen by a reaction approximated by (1) and that the specimen is uniformly thinned by the reaction, then the thinning rate in A/ min iswhere x = thickness of the specimen in A, t = time in minutes, & E = efficiency (the fraction of the water striking the specimen which reacts with it).

Integration of Core-Edge Spectroscopy Methods for the Study of Polymers

1996 ◽  
Vol 54 ◽  
pp. 154-155
Author(s):  
E. G. Rightor
Keyword(s):  
Excited State ◽  
Polymer Blends ◽  
Gas Phase ◽  
Spatial Resolution ◽  
High Spatial Resolution ◽  
Electronic States ◽  
Core Electron ◽  
Bulk Solids ◽  
Development Application

Core edge spectroscopy methods are versatile tools for investigating a wide variety of materials. They can be used to probe the electronic states of materials in bulk solids, on surfaces, or in the gas phase. This family of methods involves promoting an inner shell (core) electron to an excited state and recording either the primary excitation or secondary decay of the excited state. The techniques are complimentary and have different strengths and limitations for studying challenging aspects of materials. The need to identify components in polymers or polymer blends at high spatial resolution has driven development, application, and integration of results from several of these methods.

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