Magnetic field effects on the dynamics of biradicals generated from benzophenone and diphenylamine bifunctional chain molecules.
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概要
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The magnetic field effects (MFE) on the lifetimes of triplet biradicals generated from the intramolecular photoreaction of bifunctional chain molecules, α-(4-benzoylphenoxy)-ω-[4-(phenylamino)phenoxy]alkanes (BP–O–<I>n</I>–O–DPA, <I>n</I>=2–16) were studied by laser flash photolysis. MFE on the biradical lifetimes are strongly affected by magnetic field, chain length, and solvent. The effects are interpreted in terms of the hf-relaxation mechanism. Lifetime change due to T<SUB>−</SUB>–S level crossing was observed in the biradicals with <I>n</I>=2 and 4. The singlet and triplet degeneracy of biradicals occurs when <I>n≥</I>6.
- 公益社団法人 日本化学会の論文
著者
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Itoh Michiya
Faculty of Pharmaceutical Sciences, Kanazawa University
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Tanimoto Yoshifumi
Faculty of Pharmaceutical Sciences, Kanazawa University
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Okada Natsuo
Faculty of Pharmaceutical Sciences, Kanazawa University
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Takamatsu Shinji
Faculty of Pharmaceutical Sciences, Kanazawa University
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