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Title: Temperature dependence of electron attachment to N/sub 2/O in the gas phase

Abstract

The temperature dependence of electron attachment to N/sub 2/O has been measured in the gas phase for pure N/sub 2/O and N/sub 2/O--C/sub 2/H/sub 6/ and N/sub 2/O--neopentane mixtures. The rate constant found for e/sup -/+N/sub 2/O..-->..N/sub 2/+O/sup -/ can be expressed as 2.2 x 10/sup -7/ exp(-5.18 x 10/sup 3//T) cm/sup 3//moleculexsec while that for e/sup -/ +N/sub 2/O..-->..N/sub 2/O/sup -asterisk/ is 4.2 x 10/sup -9/ exp(-2.65 x 10/sup 3//T) cm/sup 3//moleculexsec. The corresponding activation energies are 0.44 and 0.23 eV. The latter value is discussed by reference to recent calculations on the N/sub 2/O/sup -/ energy surface. Formation of N/sub 2/O/sup -asterisk/ with such an activation energy seems possible. The temperature dependences of other reactions in the overall mechanism are also determined. Certain rate constants increase with a decrease in temperature. Formation of negative ion complexes is suggested to account for the observation.

Authors:
;
Publication Date:
Research Org.:
Radiation Laboratory and Department of Chemistry, University of Notre Dame, Notre Dame, Indiana 46556
OSTI Identifier:
6197685
Resource Type:
Journal Article
Journal Name:
J. Chem. Phys.; (United States)
Additional Journal Information:
Journal Volume: 70:3
Country of Publication:
United States
Language:
English
Subject:
74 ATOMIC AND MOLECULAR PHYSICS; ELECTRON-MOLECULE COLLISIONS; ELECTRON ATTACHMENT; NITROUS OXIDE; ACTIVATION ENERGY; HYDROCARBONS; MIXTURES; TEMPERATURE DEPENDENCE; CHALCOGENIDES; COLLISIONS; DISPERSIONS; ELECTRON COLLISIONS; ENERGY; MOLECULE COLLISIONS; NITROGEN COMPOUNDS; NITROGEN OXIDES; ORGANIC COMPOUNDS; OXIDES; OXYGEN COMPOUNDS; 640304* - Atomic, Molecular & Chemical Physics- Collision Phenomena

Citation Formats

Shimamori, H., and Fessenden, R.W. Temperature dependence of electron attachment to N/sub 2/O in the gas phase. United States: N. p., 1979. Web.
Shimamori, H., & Fessenden, R.W. Temperature dependence of electron attachment to N/sub 2/O in the gas phase. United States.
Shimamori, H., and Fessenden, R.W. Thu . "Temperature dependence of electron attachment to N/sub 2/O in the gas phase". United States.
@article{osti_6197685,
title = {Temperature dependence of electron attachment to N/sub 2/O in the gas phase},
author = {Shimamori, H. and Fessenden, R.W.},
abstractNote = {The temperature dependence of electron attachment to N/sub 2/O has been measured in the gas phase for pure N/sub 2/O and N/sub 2/O--C/sub 2/H/sub 6/ and N/sub 2/O--neopentane mixtures. The rate constant found for e/sup -/+N/sub 2/O..-->..N/sub 2/+O/sup -/ can be expressed as 2.2 x 10/sup -7/ exp(-5.18 x 10/sup 3//T) cm/sup 3//moleculexsec while that for e/sup -/ +N/sub 2/O..-->..N/sub 2/O/sup -asterisk/ is 4.2 x 10/sup -9/ exp(-2.65 x 10/sup 3//T) cm/sup 3//moleculexsec. The corresponding activation energies are 0.44 and 0.23 eV. The latter value is discussed by reference to recent calculations on the N/sub 2/O/sup -/ energy surface. Formation of N/sub 2/O/sup -asterisk/ with such an activation energy seems possible. The temperature dependences of other reactions in the overall mechanism are also determined. Certain rate constants increase with a decrease in temperature. Formation of negative ion complexes is suggested to account for the observation.},
doi = {},
journal = {J. Chem. Phys.; (United States)},
number = ,
volume = 70:3,
place = {United States},
year = {1979},
month = {2}
}