ArticleJournal of magnetic resonance (San Diego, Calif. : 1997)2013
Hyperfine interactions of narrow-line trityl radical with solvent molecules.
Article in Journal of magnetic resonance (San Diego, Calif. : 1997), 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers.
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Who cites it
21 citing papers in PubMed, 52 citations in OpenAlex.
- Symmetry-based pulsed DNP and EPR sequences.Science advances · 2026Article
- Compact 1 GHz electron paramagnetic resonance spectrometer and imager.The Review of scientific instruments · 2025Article
- Revealing the Nature of Non-Covalent Interactions in Ionic Liquids by Combined Pulse EPR andAngewandte Chemie (International ed. in English) · 2025Article
- Electron-spin decoherence in trityl radicals in the absence and presence of microwave irradiation.Magnetic resonance (Gottingen, Germany) · 2025Article
- Proton hyperfine couplings and Overhauser DNP.Journal of magnetic resonance (San Diego, Calif. : 1997) · 2024Article
- Observation of a four-spin solid effect.The Journal of chemical physics · 2022Article
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- Three-spin solid effect and the spin diffusion barrier in amorphous solids.Science advances · 2019Article
- 250 MHz Rapid Scan Cross Loop Resonator.Applied magnetic resonance · 2019Article
- Tabletop 700 MHz electron paramagnetic resonance imaging spectrometer.Concepts in magnetic resonance. Part B, Magnetic resonance engineering · 2018Article
- Efficient cross-effect dynamic nuclear polarization without depolarization in high-resolution MAS NMR.Chemical science · 2017Article
- Off-resonance NOVEL.The Journal of chemical physics · 2017Article
- Frequency-Swept Integrated Solid Effect.Angewandte Chemie (International ed. in English) · 2017Article
- Ramped-amplitude NOVEL.The Journal of chemical physics · 2017Article
- Triarylmethyl Radical: EPR Signal to Noise at Frequencies between 250 MHz and 1.5 GHz and Dependence of Relaxation on Radical and Salt Concentration and on Frequency.Zeitschrift fur physikalische Chemie (Frankfurt am Main, Germany) · 2017Article
- Electron spin dynamics and spin-lattice relaxation of trityl radicals in frozen solutions.Physical chemistry chemical physics : PCCP · 2016Article
- Facile and High-Yielding Synthesis of TAM Biradicals and Monofunctional TAM Radicals.Synlett : accounts and rapid communications in synthetic organic chemistry · 2016Article
- Pulsed Dynamic Nuclear Polarization with Trityl Radicals.The journal of physical chemistry letters · 2016Article
- Room-Temperature Electron Spin Relaxation of Triarylmethyl Radicals at the X- and Q-Bands.The journal of physical chemistry. B · 2015Article
- Efficient Dynamic Nuclear Polarization at 800 MHz/527 GHz with Trityl-Nitroxide Biradicals.Angewandte Chemie (International ed. in English) · 2015Article
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Authors and funding
9 authors at 3 institutions in 2 countries.
Funding
Abstract
The electron nuclear dipolar interactions responsible for some dynamic nuclear polarization (DNP) mechanisms also are responsible for the presence formally in CW EPR spectra of forbidden satellite lines in which both the electron spin and a nuclear spin flip. Such lines arising from (1)H nuclei are easily resolved in CW EPR measurements of trityl radicals, a popular family of DNP reagents. The satellite lines overlap some of the hyperfine features from (13)C in natural abundance in the trityl radical, but their intensity can be easily determined by simple simulations of the EPR spectra using the hyperfine parameters of the trityl radical. Isotopic substitution of (2)H for (1)H among the hydrogens of the trityl radical and/or the solvent allows the dipolar interactions from the (1)H on the trityl radical and from the solvent to be determined. The intensity of the dipolar interactions, integrated over all the (1)H in the system, is characterized by the traditional parameter called reff. For the so-called Finland trityl in methanol, the reff values indicate that collectively the (1)H in the unlabeled solvent have a stronger integrated dipolar interaction with the unpaired electron spin of the Finland trityl than do the (1)H in the radical and consequently will be a more important DNP route. Although reff has the dimensions of distance, it does not correspond to any simple physical dimension in the trityl radical because the details of the unpaired electron spin distribution and the hydrogen distribution are important in the case of trityls.
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