SEARCH Articles Figures Tables Electron Spin Resonance of Transition Electron Spin Resonance of Transition Metal Complexes Electron spin resonance -active transition metal ions Electron spin resonance spectra forbidden transitions Electron spin resonance transition frequencies Electron spin transitions Electronic absorption spectroscopy spin allowed transitions Electronic entropy spin-state transitions Spin-orbit coupling transition metal electronic structure Transition metal complexes, electron spin Transition metal complexes, electron spin hyperfine coupling Transition-metal complexes, electron spin resonance