On the Origins of Some Spectroscopic Properties of "Purple Iron" (the Tetraoxoferrate(VI) Ion) and Its Pourbaix Safe-Space.

Philip C W Cheung, Daryl R Williams, Jack Barrett, James Barker, Donald W Kirk

Abstract readReview

In one paragraph

Review in Molecules (Basel, Switzerland), 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.

0numbers the graph read from it

0cells of the map it votes in

2citing 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

2 citing papers in PubMed.

Defect-interface coupling for stable lattice-oxygen-driven oxygen evolution at industrial current densities.Nature communications · 2026
Article
The effect of temperature on the rate of oxygen evolution reaction during ferrate(VI) synthesis by anodic dissolution of iron in highly alkaline media.Heliyon · 2024
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

5 authors.

Philip C W CheungDepartment of Chemical Engineering, Imperial College, London SW7 2AZ, UK.

Daryl R WilliamsDepartment of Chemical Engineering, Imperial College, London SW7 2AZ, UK.

Jack BarrettDepartment of Chemistry, King's College, University of London, London WC2R 2LS, UK.

James BarkerSchool of Life Sciences, Pharmacy and Chemistry, Kingston University, Kingston-upon-Thames KT1 2EE, UK.ORCID 0000-0002-5863-9400

Donald W KirkDepartment of Chemical Engineering & Applied Chemistry, University of Toronto, Toronto, ON M5S 3E5, Canada.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

In this work, the authors attempt to interpret the visible, infrared and Raman spectra of ferrate(VI) by means of theoretical physical-inorganic chemistry and historical highlights in this field of interest. In addition, the sacrificial decomposition of ferrate(VI) during water treatment will also be discussed together with a brief mention of how Rayleigh scattering caused by the decomposition of Fe

Indexed as

ferrate(VI)infraredPourbaix diagramRaman spectroscopiesultraviolet-visible

Identifiers

PMID34500697

DOI10.3390/molecules26175266

PMCPMC8434183

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