Chemically Induced Dynamic Nuclear Polarization
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چکیده
N M R emission and e n h a n c e d absorpt i on o f p roduc t s o f radical react ions ( C I D N P ) is e x p l a i n e d b y nuc lear spin d e p e n d e n t ad iabat i c transit ions be tween singlet a n d tr iplet states o f transient radical pairs. I n m a g n e t i c fields larger than a b o u t 1 k G o n l y S — To-transit ions c ont r ibute t o nuc lear polar izat ion. F r o m a k inet i c f o r m u l a t i o n o f the pair mechanism equat ions f o r quant i ta t ive ca lculat ions o f C I D N P pat terns are der ived .
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