Evidence map›Paper›PMID 25412468›Full record

ArticleJournal of the American Chemical Society2014

Alkali metal control over N-N cleavage in iron complexes.

Katarzyna Grubel, William W Brennessel, Brandon Q Mercado, Patrick L Holland

Abstract read
In one paragraph

Article in Journal of the American Chemical Society, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 44 papers.

0numbers the graph read from it
0cells of the map it votes in
44citing papers in PubMed
4.0field-weighted citation impact, top 5% of its field
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

44 citing papers in PubMed, 113 citations in OpenAlex.

  1. Article
  2. Article
  3. Neighboring Alkali Cations as an Efficient Strategy for NInternational journal of molecular sciences · 2026
    Article
  4. Oxidatively Induced Reductive NJournal of the American Chemical Society · 2025
    Article
  5. Article
  6. Article
  7. Review
  8. Article
  9. Article
  10. Review
  11. Article
  12. Article
  13. Dinitrogen Coordination to a High-Spin Diiron(I/II) Species.Angewandte Chemie (International ed. in English) · 2022
    Article
  14. NFrontiers in chemistry · 2022
    Article
  15. Article
  16. Tuning metal-metal interactions for cooperative small molecule activation.Chemical communications (Cambridge, England) · 2021
    Review
  17. Dinitrogen Fixation: Rationalizing Strategies Utilizing Molecular Complexes.Chemistry (Weinheim an der Bergstrasse, Germany) · 2021
    Review
  18. Article
  19. Review
  20. Mimicking the Constrained Geometry of a Nitrogen-Fixation Intermediate.Journal of the American Chemical Society · 2020
    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

4 authors at 2 institutions in 1 country.

Katarzyna GrubelDepartment of Chemistry, Yale University , New Haven, Connecticut 06511, United States.
William W Brennessel
Brandon Q Mercado
Patrick L Holland
Yale University · USUniversity of Rochester · US

Funding

Low-Coordinate Synthetic Models for Nitrogenase ActivityR01GM065313 · NIGMS · YALE UNIVERSITY · PI PATRICK L HOLLAND · 2004 to 2026
$6.4M
NIGMS NIH HHS GM065313NIGMS NIH HHS R01 GM065313
6 · The paper itself

Abstract

Though N2 cleavage on K-promoted Fe surfaces is important in the large-scale Haber-Bosch process, there is still ambiguity about the number of Fe atoms involved during the N-N cleaving step and the interactions responsible for the promoting ability of K. This work explores a molecular Fe system for N2 reduction, particularly focusing on the differences in the results obtained using different alkali metals as reductants (Na, K, Rb, Cs). The products of these reactions feature new types of Fe-N2 and Fe-nitride cores. Surprisingly, adding more equivalents of reductant to the system gives a product in which the N-N bond is not cleaved, indicating that the reducing power is not the most important factor that determines the extent of N2 activation. On the other hand, the results suggest that the size of the alkali metal cation can control the number of Fe atoms that can approach N2, which in turn controls the ability to achieve N2 cleavage. The accumulated results indicate that cleaving the triple N-N bond to nitrides is facilitated by simultaneous approach of least three low-valent Fe atoms to a single molecule of N2.

Indexed as

Crystallography, X-RayIron CompoundsMetals, AlkaliModels, MolecularMolecular ConformationNitrogenIron CompoundsMetals, AlkaliNitrogen

Identifiers

PMID25412468
PMCPMC4277784
OpenAlexW1991586078

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

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.