Electron Density - Spin Density

Spin density is electron density applied to free radicals. It is defined as the total electron density of electrons of one spin minus the total electron density of the electrons of the other spin. One of the ways to measure it experimentally is by electron spin resonance, neutron diffraction allows direct mapping of the spin density in 3D-space.

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Famous quotes containing the word spin:

    “In tragic life, God wot,
    No villain need be! Passions spin the plot:
    We are betrayed by what is false within.”
    —George Meredith (1828–1909)