Evidence map›Paper›PMID 24416504›Full record

ArticleChemical science2014

Do Spin State and Spin Density Affect Hydrogen Atom Transfer Reactivity?

Caroline T Saouma, James M Mayer

Abstract read
In one paragraph

Article in Chemical science, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 31 papers.

0numbers the graph read from it
0cells of the map it votes in
31citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

31 citing papers in PubMed.

  1. Review
  2. A 5,000-fold increase in the HAT reactivity of a nonheme FeProceedings of the National Academy of Sciences of the United States of America · 2025
    Article
  3. 10-Fold Increase in Hydrogen Atom Transfer Reactivity for a Series ofJournal of the American Chemical Society · 2025
    Article
  4. Review
  5. NMR and Mössbauer Studies Reveal a Temperature-Dependent Switch fromJournal of the American Chemical Society · 2024
    Article
  6. The role of basicity in selective C-H bond activation by transition metal-oxidos.Dalton transactions (Cambridge, England : 2003) · 2023
    Review
  7. Journal of the American Chemical Society · 2022
    Article
  8. Article
  9. Article
  10. Article
  11. Review
  12. Semiempirical method for examining asynchronicity in metal-oxido-mediated C-H bond activation.Proceedings of the National Academy of Sciences of the United States of America · 2021
    Article
  13. Review
  14. Article
  15. Article
  16. Article
  17. Article
  18. Article
  19. The oxidation of cyclo-olefin by the S = 2 ground-state complex [FeJournal of biological inorganic chemistry : JBIC : a publication of the Society of Biological Inorganic Chemistry · 2020
    Article
  20. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

2 authors.

Caroline T SaoumaDepartment of Chemistry, University of Washington, Campus Box 351700, Seattle, WA, USA.
James M MayerDepartment of Chemistry, University of Washington, Campus Box 351700, Seattle, WA, USA.

Funding

UNDERSTANDING METAL MEDIATED C-H AND O-H BOND OXIDATIONSR01GM050422 · NIGMS · YALE UNIVERSITY · PI MAYER, JAMES M · 1995 to 2020
$6.1M
Understanding coupled transfers of electrons and protons relevant to biological cR56GM050422 · NIGMS · UNIVERSITY OF WASHINGTON · PI MAYER, JAMES M · 2007 to 2007
$310k
Proton-Coupled Electron Transfer with Biomimetic Models of the [2Fe-2S] Rieske ClF32GM099316 · NIGMS · UNIVERSITY OF WASHINGTON · PI SAOUMA, CAROLINE THALIA · 2011 to 2013
$116k
NIGMS NIH HHS F32 GM099316NIGMS NIH HHS R01 GM050422NIGMS NIH HHS R56 GM050422
6 · The paper itself

Abstract

The prevalence of hydrogen atom transfer (HAT) reactions in chemical and biological systems has prompted much interest in establishing and understanding the underlying factors that enable this reactivity. Arguments have been advanced that the electronic spin state of the abstractor and/or the spin-density at the abstracting atom are critical for HAT reactivity. This is consistent with the intuition derived from introductory organic chemistry courses. Herein we present an alternative view on the role of spin state and spin-density in HAT reactions. After a brief introduction, the second section introduces a new and simple fundamental kinetic analysis, which shows that unpaired spin cannot be the dominant effect. The third section examines published computational studies of HAT reactions, which indicates that the spin state affects these reactions indirectly, primarily via changes in driving force. The essay concludes with a broader view of HAT reactivity, including indirect effects of spin and other properties on reactivity. It is suggested that some of the controversy in this area may arise from the diversity of HAT reactions and their overlap with proton-coupled electron transfer (PCET) reactions.

Identifiers

PMID24416504
PMCPMC3885253

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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.