Chromophore-radical excited state antiferromagnetic exchange controls the sign of photoinduced ground state spin polarization
Martin L. Kirk, David A. Shultz, Patrick Hewitt, Daniel E. Stasiw, Ju Chen, Art van der Est
Abstract
A change in the sign of the ground state electron spin polarization (ESP) is reported in complexes where an organic radical (nitronylnitroxide, NN) is covalently attached to a donor–acceptor chromophore via two different meta -phenylene bridges.
Topics & Concepts
ChromophoreExcited stateAntiferromagnetismGround stateSign (mathematics)Polarization (electrochemistry)PhotochemistrySpin polarizationChemistryCondensed matter physicsAtomic physicsPhysicsPhysical chemistryQuantum mechanicsElectronMathematicsMathematical analysisPhotoreceptor and optogenetics researchSpectroscopy and Quantum Chemical StudiesQuantum optics and atomic interactions