Photolysis of endoperoxides in the presence of nitroxides: a laser flash photolysis study with optical and ESR detection
Photolysis of endoperoxides in the presence of nitroxides: a laser flash photolysis study with optical and ESR detection
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硝基氧存在下内过氧化物的光解：利用光学和 ESR 检测的激光闪光光解研究
DOI：
10.1039/c3pp50292a
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发表时间：
2014
影响因子：
3.1
通讯作者：
N. Turro
中科院分区：
文献类型：
--
作者：
A. Moscatelli;E. Sartori;M. Ruzzi;S. Jockusch;X. Lei;I. Khudyakov;N. Turro
本文用时间分辨电子顺磁共振谱、瞬态吸收光谱和磷光光谱研究了氮氧自由基与单线态氧（^1O_2）相互作用引起的自旋极化。后者是由两种蒽衍生物的内过氧化物光解产生的。虽然这两种蒽内过氧化物的结构相似，相反的自旋极化的氮氧自由基。由于与生成的^1O_2相互作用，一种内过氧化物的光解导致吸收性氮氧自由基自旋极化。光解的其他内过氧化物产生发射氮氧自由基自旋极化，可能是由于内过氧化物的三重态与氮氧自由基的相互作用。
Time-resolved electron paramagnetic resonance spectroscopy, transient absorption, and phosphorescence spectroscopy were used to investigate the spin polarization of a nitroxide free radical induced by interaction with singlet oxygen (^1O_2). The latter was generated by photolysis of endoperoxides of two anthracene derivatives. Although both anthracene endoperoxides are structurally similar, opposite spin polarization of the nitroxide was observed. Photolysis of one endoperoxide leads to absorptive nitroxide spin polarization due to interaction with the generated^1O_2. Photolysis of the other endoperoxide generated emissive nitroxide spin polarization, probably due to interaction of the endoperoxide triplet states with nitroxides.
共价连接的卟啉二聚体中弱耦合三重态-双重态自旋对的光诱导电子自旋极化
DOI：
--
发表时间：
2002
期刊：
J.Phys.Chem. A106(37)
影响因子：
--
作者：
A.van der Est;M.Asano-Someda;P.Ragogna;Y.Kaizu
通讯作者：
Y.Kaizu