Electron spin echo envelope modulation (ESEEM) caused by ¹⁴N and ²D hyperfine interactions in the triplet state of acridine at room temperature

Abstract

Electron spin echo envelope modulation (ESEEM) with two- or three-pulse echoes has been observed in the triplet state of acridine in fluorene host crystals. Fourier transformation of the modulation pattern yield the quadrupole and hyperfine spectra of 14N and 2D nuclei. The hyperfine tensor elements for 14N as well as for m, α, and β deuterons are determined, rendering a refined spin density map of the acridine triplet state. © 1985 American Institute of Physics.