Electron spin-echo experiments in photo-excited triplet states in an external magnetic field

Botter, B.J.; Doetschman, David C.; Schmidt, Jan; Waals, J.H. van der

doi:10.1080/00268977500102171

Cited by 27 publications

(6 citation statements)

References 17 publications

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“…First the R spins, which are very close to the microwave frequency and are characterized by [Aco[ < 7eB1. According to (6) they no longer contribute to the dephasing. Secondly, the P spins, to which applies [Aco[ > 7eB 1.…”

Section: Discussionmentioning

confidence: 96%

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The effect of spectral diffusion on the phase coherence of phosphorescent triplet spins

Hof

Schmidt

1979

Molecular Physics

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We have made a systematic study of the effect of spectral diffusion on the phase coherence of phosphorescent triplet spins. The effect is caused by time dependent hyperfine interactions with surrounding nuclear spins, which make the resonance frequencies of the spin-packets vary in time. From the behaviour of the spin echo signals we derive characteristic parameters for these frequency instabilities.

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Section: Discussionmentioning

confidence: 96%

“…Van 't Hof et al [5] reported the observation of multiple electron spin echoes. Besides these zero-field experiments, a spin echo study on phosphorescent molecules in the presence of a magnetic field was published by Botter et al (6].…”

Section: Introductionmentioning

confidence: 98%

The effect of spectral diffusion on the phase coherence of phosphorescent triplet spins

Hof

Schmidt

1979

Molecular Physics

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“…In isolated molecular centers the short component 자 is in the order of 자 > 100 μs， whereas for the tetrachlobenzene exciton it is 자 르 2 μs [18]. In the latter case the HE decay is 허so in the order of 1.3 μs [18].…”

Section: Stimulated Echo Experimentsmentioning

confidence: 96%

“…Op디C려 detection of SE has been performed on isolated centers [7,12,13,[16][17][18] and excitons in molecular cryst머s [18]. In this kind of experiment three πl2 -pulses are followed by a .7rI2-pulse necessary for optic떠 detection.…”

Section: Stimulated Echo Experimentsmentioning

confidence: 99%

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Optical detection of spin coherence in a defect center of a molecular crystal

et al. 1991

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Absσact. Various optically detected spin coherence experiments have been perfonned at zero magne디c field in a tunable loop-gap ca띠ty adapted for optical detection of magnetic resonance. Experiments on X-traps induced by guest molecules in chemically mixed p-dibromobenzene (DBB) crys때s pro년de evidence thatoptic외ly excited t디plet states perfonn at 1.4 K fast jumps between magnetically well defined trapmolecules. We conclude thattheguest molecule p-dichlorobenzene issurrounded byatleast 4 energetically distorted DBB hostmolecules.

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Electrochemical Arylation of Electron‐Deficient Arenes through Reductive Activation

et al. 2019

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An electrochemical method has been developed to achieve arylation of electron‐deficient arenes through reductive activation. Various electron‐deficient arenes and aryldiazonium tetrafluoroborates are amenable to this transformation within the conditions of an undivided cell, providing the desired products in up to 92 % yield. Instead of preparing diazonium reagents, these reactions can begin from anilines, and they can be carried out in one pot. Electron paramagnetic resonance studies indicate that cathodic reduction of quinoxaline occurs using the transformation. Moreover, cyclic voltammetry indicates that both quinoxaline and aryl diazonium salt have relatively low reduction potentials, which suggests they can be activated through reduction during the reaction.

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Electron spin-echo experiments in photo-excited triplet states in an external magnetic field

Cited by 27 publications

References 17 publications

The effect of spectral diffusion on the phase coherence of phosphorescent triplet spins

The effect of spectral diffusion on the phase coherence of phosphorescent triplet spins

Optical detection of spin coherence in a defect center of a molecular crystal

Electrochemical Arylation of Electron‐Deficient Arenes through Reductive Activation

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