Evidence map›Paper›PMID 33373520›Full record

ArticleInorganic chemistry2021

Quantification of Ni-N-O Bond Angles and NO Activation by X-ray Emission Spectroscopy.

Phan N Phu, Carlos E Gutierrez, Subrata Kundu, Dimosthenis Sokaras, Thomas Kroll, Timothy H Warren, S Chantal E Stieber

Open access · greenAbstract read
In one paragraph

Article in Inorganic chemistry, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.

0numbers the graph read from it
0cells of the map it votes in
4citing papers in PubMed
0.6field-weighted citation impact, top 35% 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

4 citing papers in PubMed, 14 citations in OpenAlex.

  1. Article
  2. X-ray absorption and emission spectroscopy of NDalton transactions (Cambridge, England : 2003) · 2024
    Article
  3. Article
  4. 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

7 authors at 3 institutions in 2 countries.

Phan N PhuDepartment of Chemistry & Biochemistry, California State Polytechnic University, Pomona, California 91768, United States.ORCID http://orcid.org/0000-0003-4564-7468
Carlos E GutierrezDepartment of Chemistry & Biochemistry, California State Polytechnic University, Pomona, California 91768, United States.
Subrata KunduDepartment of Chemistry, Georgetown University, Box 571227, Washington, D.C. 20057, United States.ORCID http://orcid.org/0000-0002-3533-3206
Dimosthenis SokarasStanford Synchrotron Radiation Lightsource, SLAC National Accelerator Laboratory, Menlo Park, California 94025, United States.
Thomas KrollStanford Synchrotron Radiation Lightsource, SLAC National Accelerator Laboratory, Menlo Park, California 94025, United States.
Timothy H WarrenDepartment of Chemistry, Georgetown University, Box 571227, Washington, D.C. 20057, United States.ORCID http://orcid.org/0000-0001-9217-8890
S Chantal E StieberDepartment of Chemistry & Biochemistry, California State Polytechnic University, Pomona, California 91768, United States.ORCID http://orcid.org/0000-0003-3778-207X
California State Polytechnic University · USGeorgetown University · USSLAC National Accelerator Laboratory · US

Funding

X-ray Absorption Spectroscopy (XAS) pp.711-759P41GM103393 · NIGMS · STANFORD UNIVERSITY · PI HODGSON, KEITH O · 2012 to 2019
$30.6M
Nitric Oxide Signaling Chemistry at Non-Heme SitesR01GM126205 · NIGMS · GEORGETOWN UNIVERSITY · PI WARREN, TIMOTHY H · 2017 to 2020
$1.2M
NIGMS NIH HHS P41 GM103393NIGMS NIH HHS R01 GM126205
6 · The paper itself

Abstract

A series of β-diketiminate Ni-NO complexes with a range of NO binding modes and oxidation states were studied by X-ray emission spectroscopy (XES). The results demonstrate that XES can directly probe and distinguish end-on vs side-on NO coordination modes as well as one-electron NO reduction. Density functional theory (DFT) calculations show that the transition from the NO 2s2s σ* orbital has higher intensity for end-on NO coordination than for side-on NO coordination, whereas the 2s2s σ orbital has lower intensity. XES calculations in which the Ni-N-O bond angle was fixed over the range from 80° to 176° suggest that differences in NO coordination angles of ∼10° could be experimentally distinguished. Calculations of Cu nitrite reductase (NiR) demonstrate the utility of XES for characterizing NO intermediates in metalloenzymes. This work shows the capability of XES to distinguish NO coordination modes and oxidation states at Ni and highlights applications in quantifying small molecule activation in enzymes.

Identifiers

PMID33373520
PMCPMC9534352
OpenAlexW3116204771

What OpenQuestion holds

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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.