Hyperfine Structure of Nitrogen

Abstract

IONIZATION BY 5-MEV a PARTICLES IN A 645 of the argon atoms with methane molecules would be approximately 10 8 per second per excited argon atom. The assumption that the cross section measured by Biondi for the destruction of metastable helium by argon applies to the argon-methane reaction leads to approximately 5X10 6 destructions (hence ionizations) per second per excited argon. Therefore an excited state * Assisted by the Office of Naval Research and the du Pont Company. t du Pont Company Fellow in Physics.The magnetic resonance spectrum of the 4 5 ground state of atomic nitrogen-14 has been observed using the microwave absorption method. The magnetic-dipole hyperfine interaction constant is ^ = 10.45±0.02Mc/sec.No evidence was obtained for electric quadrupole interaction.

Effects of plasma parameters on increasing the purity of nitrogen atom encapsulated fullerene in an RF plasma

“…2 is therefore threefold degenerate [6,7]. Since the hyperfine splitting constants of free nitrogen and N@C 60 are predicted to be 3.8 and 5.67 G, respectively [17], the hyperfine constant for the splitting of Fig. 2 agrees with that of N@C 60 , demonstrating that N@C 60 exists in the solution.…”

ESR studies of nitrogen atoms stabilized in aggregates of krypton–nitrogen nanoclusters immersed in superfluid helium

“…These results were obtained from earlier studies [36][37][38][39][40][41][42][43]. The spectroscopic characteristics for N atoms as obtained from the fitting procedure were compared with the characteristics for N atoms in different matrices shown in Table 2.…”

Some Recent Developments in the Study of Unstable Species

“…For example, the concentration of nitrogen atoms produced by an electrical discharge has been determined by mass spectro~copy,~~ by the absorption spectra of atoms frozen out from a flow system,I2 and also by the heat liberated when these trapped atoms are permitted to warm up and recombine.I2 Kistiakowsky and his c o -~o r k e r s~~ have recently compared emission spectra and mass spectra of a gaseous system of nitrogen atoms, while Winkler and his ~o -w o r k e r s~~, 26 have studied chemically the reactions of nitrogen atoms with a considerable number of compounds. The paramagnetic resonance spectrum of nitrogen atoms formed in an electrical discharge has also been recorded.…”