Chemical Reactions in Molecular Sieves. I. NO3 Free Radical from Direct Reaction of NO2 and Atomic Oxygen
- 15 April 1967
- journal article
- research article
- Published by AIP Publishing in The Journal of Chemical Physics
- Vol. 46 (8) , 2973-2975
- https://doi.org/10.1063/1.1841165
Abstract
NO2 adsorbed in the cavities of 13‐X molecular sieve reacts with oxygen atoms from a microwave discharge to form the NO3 free radical which remains trapped within the cavities. The EPR spectrum of the NO3 at 300°K is a single symmetrical line with g=2.019 and 11 G width between points of maximum slope. At 85°K a 5.9‐G isotropic hyperfine coupling constant with the single 14N nucleus is resolved. The trapped NO3 free radical is apparently freely rotating even at 85°K. The odd‐electron NO2 molecule is observed to exhibit free rotation in the 13‐X sieve only down to ∼150°K.Keywords
This publication has 3 references indexed in Scilit:
- Paramagnetic Resonance Spectrum of the 1Δg Oxygen MoleculeThe Journal of Chemical Physics, 1965
- Isolation and Storage of Free Radicals on Molecular Sieves. I. The Electron Paramagnetic Resonance Spectrum of Nitrogen DioxideInorganic Chemistry, 1963
- Analysis of the ESR Spectrum of NO2 in Solid ArgonThe Journal of Chemical Physics, 1962