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固态Photo-CIDNP效应

王孝杰 THAMARATH Smitha Surendran ALIA A. BODE Bela E. MATYSIK Jörg

物理化学学报Issue(2):399-404,6.
物理化学学报Issue(2):399-404,6.DOI:10.3866/PKU.WHXB201511272

固态Photo-CIDNP效应

The Solid-State Photo-CIDNP Effect

王孝杰 1THAMARATH Smitha Surendran 2ALIA A. 3BODE Bela E. 2MATYSIK Jörg3

作者信息

  • 1. 国防科技大学理学院化学与生物学系,长沙410073
  • 2. 莱比锡大学分析化学研究所,莱比锡04103,德国
  • 3. 莱顿大学化学院,莱顿2300RA,荷兰
  • 折叠

摘要

Abstract

Photochemical y induced dynamic nuclear polarization (photo-CIDNP) is an effect that produces non-Boltzmann nuclear spin polarization, which can be observed as a modification of signal intensity in nuclear magnetic resonance (NMR) spectroscopy. The effect is wel known in liquid-state NMR, where it is explained most general y by the classical radical pair mechanism (RPM). In the solid-state, additional mechanisms are operative in the spin-dynamics of radical pairs, such as three-spin mixing (TSM), differential decay (DD) and differential relaxation (DR). The observed solid-state photo-CIDNP effect is strongly magnetic field dependent, and this field-dependence is wel distinguished for the various nuclei. Here, we provide an account of the phenomenology, theory and properties of the magnetic field dependence of the solid-state photo-CIDNP effect.

关键词

光化学诱导动态核极化/魔角旋转/核磁共振/自由基对/自旋化学

Key words

Photo-CIDNP/Magic angle spinning/Nuclear magnetic resonance/Radical pair/Spin chemistry

分类

化学化工

引用本文复制引用

王孝杰,THAMARATH Smitha Surendran,ALIA A.,BODE Bela E.,MATYSIK Jörg..固态Photo-CIDNP效应[J].物理化学学报,2016,(2):399-404,6.

基金项目

The project was supported by the Netherlands Organization for Scientific Research (NWO)(713.012.001).荷兰科学研究组织(NWO)(713.012.001)资助项目 (NWO)

物理化学学报

OA北大核心CSCDCSTPCDSCI

1000-6818

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