Magnetic Hyperfine Effects and Electronic Structure of NO

Adsorption and Desorption Behavior of NO on H-ZSM-5, Na-ZSM-5, and Na-A as Studied by EPR

“…In this model the electronic structure of NO is assumed to be composed of a mixture of two resonance structures (12) :Ṅ= =Ö: ↔ :N − = =Ȯ:…”

“…In this work our approach is used to study NO adsorption at sodium cations in A type, and aluminum defect centers, so-called "true" Lewis acid sites, in ZSM-5 type zeolites. This particular adsorption-desorption method takes advantage of the specific magnetic properties of gaseous NO molecules (10) that have been extensively studied by EPR (11)(12)(13) and microwave absorption (14,15) techniques in the past. It seems worth noting that NO molecules are physically similar to OH radicals (16,17) in terms of their molecular states but are chemically much more stable.…”

The electron spin resonance spectrum of a γ-irradiated single crystal of glycine

“…The results are given in table 3. The assumptions have been made that the coupling for ls hydrogen orbital = 1420 Mc/s as in the free atom, that ~5~(0) for a 2s nitrogen orbital = 34 x 10 ~4 cm -a and that (r-3}averag e for a 2p nitrogen = 22.5 x 102~ cm -3 [20]. Since the radicals are similar in size and atomic arrangement to the molecules it is reasonable to expect that they occupy the site previously occupied by the parent molecule and that their orientation in the site is similar.…”

Photoelectron spectra, penning ionization electron spectra, and character of canonical molecular orbitals

“…For the CO molecule, the VB theory uses the following four resonating Lewis structures 13 NO is a stable radical with a delocalized, unpaired electron described by the following resonating Lewis structures 14 :…”