Hyperfine Interactions and Electron Spin Distribution in Triplet-State Naphthalene

Abstract

The anisotropic proton hyperfine interaction of the triplet‐state electrons of the naphthalene molecule have been measured at the boiling point of N₂. The naphthalene molecules were oriented in single crystal solid solutions in durene. The effects of various substitutions of D for H were investigated. The spin density distribution deduced from these experiments was ρ_α=+0.219, ρ_β=+0.062, ρ_γ=—0.063. These results were compared with the results of theoretical calculations and with experimental results for the naphthalene negative ion.