Effect of heavy atoms on photochemically induced dynamic nuclear polarization in liquids

Yusuke Okuno; Silvia Cavagnero

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Effect of heavy atoms on photochemically induced dynamic nuclear polarization in liquids

机译：重原子对光化学诱导的液体动态核极化的影响

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?Heavy-atom-containing additives enhance photo-CIDNP-mediated hyperpolarization.

?The neutral additive 3-iodo-1-propanol (IPO) boosts photo-CIDNP by up to 2.5-fold.

?IPO leads to enhanced intersystem-crossing rate constants of photosensitizer dyes.

?Unlike the neutral IPO, ionic additives (e.g., KI) suppress photo-CIDNP.

Abstract

Given its short hyperpolarization time (～10?6?s) and mostly non-perturbative nature, photo-chemically induced dynamic nuclear polarization (photo-CIDNP) is a powerful tool for sensitivity enhancement in nuclear magne

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？含重原子的添加剂增强了光CIDNP介导的超极化。

？中性添加剂3-Iodo-1-Propanol（IPO）提升照片CIDN p达到2.5倍。

？ IPO导致光敏剂染料的增强层间交叉速率常数。

？与中性IPO，离子添加剂（例如，ki）抑制照片cidnp。

抽象

给出了其短的超极化时间（〜10 ？6 Δs），大多是非扰动性，光学诱导的动态核极化（Photo-CIDNP）是核磁铁敏感性增强的强大工具

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来源
《Journal of magnetic resonance 》 |2018年第2018期| 共16页
作者
Yusuke Okuno; Silvia Cavagnero;
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作者单位

Department of Chemistry University of Wisconsin – Madison;

Department of Chemistry University of Wisconsin – Madison;

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原文格式 PDF
正文语种 eng
中图分类 O82.532;
关键词
Hyperpolarization; Photo-CIDNP; Heavy atoms; NMR sensitivity; Inter-system crossing; External heavy-atom effect;

机译：超极化;光学CIDNP;重原子;NMR敏感性;系统间交叉;外部重型效果;

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1. Effect of heavy atoms on photochemically induced dynamic nuclear polarization in liquids [J] . Yusuke Okuno, Silvia Cavagnero Journal of magnetic resonance . 2018 ,第期

机译：重原子对光化学诱导的液体动态核极化的影响
2. Photochemically induced dynamic nuclear polarization NMR on photosystem II: donor cofactor observed in entire plant [J] . Geertje J. Janssen, Pavlo Bielytskyi, Denis G. Artiukhin, Scientific reports. . 2018 ,第1期

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3. Analysis of the Electronic Structure of the Special Pair of a Bacterial Photosynthetic Reaction Center by ^{1313 C Photochemically Induced Dynamic Nuclear Polarization Magic‐Angle Spinning NMRNMR Using a Double‐Quantum Axis} [J] . Najdanova Marija, Gr?sing Daniel, Alia A., Photochemistry and Photobiology: An International Journal . 2018 ,第1期

机译：通过^{13 13 c光学诱导动态核极化魔法 - 角度旋转 nmr使用双量子轴 nmr}
4. PHOTOCHEMICALLY INDUCED DYNAMIC NUCLEAR POLARISATION OBSERVED BY ~(13)C MAGIC-ANGLE SPINNING NMR IN PHOTOSYSTEM I OF PLANTS [C] . Esha Roy, Peter Gast, Hans J. van Gorkom, International Congress of Photosynthesis . 2005

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5. Current-Induced Spin Polarization and Dynamic Nuclear Polarization: Generation and Manipulation of Electron and Nuclear Spin Polarization in Gallium Arsenide [D] . Iafrate, Joseph Rocco. 2020

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6. Effect of Heavy Atoms on Photochemically Induced Dynamic Nuclear Polarization in Liquids [O] . Yusuke Okuno, Silvia Cavagnero -1

机译：重原子对光化学诱导液体中动态核极化的影响
7. Effect of heavy atoms on photochemically induced dynamic nuclear polarization in liquids [O] . Yusuke Okuno, Silvia Cavagnero 2018

机译：重原子对光学诱导的液体动态核极化的影响
8. Primary Processes in the Type I Photocleavage of Dibenzyl Ketones. A Pulsed Laser and Photochemically Induced Dynamic Nuclear Polarization Study [R] . Gould, I. R., Baretz, B. H., Turro, N. J. 1987

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Effect of heavy atoms on photochemically induced dynamic nuclear polarization in liquids

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