Open Access Article
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Retraction: Synthesis of novel pyrazole incorporating a coumarin moiety (PC) for selective and sensitive Co2+ detection

Faisal M. Aqlan*ab, M. M. Alamc, Abdullah S. Al-Bogamia, Tamer S. Saleh*ad, Abdullah M. Asirief, Jamal Udding and Mohammed M. Rahman*ef
aChemistry Dept., Faculty of Science, University of Jeddah, P.O. Box 80327, 21589 Jeddah, Saudi Arabia. E-mail: aqlanfaisal@gmail.com; tssayed@uj.edu.sa
bDepartment of Chemistry, Faculty of Science, University of IBB, IBB, Yemen
cDepartment of Chemical Engineering and Polymer Science, Shahjalal University of Science and Technology, Sylhet 3100, Bangladesh
dGreen Chemistry Department, National Research Centre, Dokki, Cairo 12622, Egypt
eCenter of Excellence for Advanced Materials Research, Faculty of Science, King Abdulaziz University, Jeddah 21589, Saudi Arabia
fChemistry Department, Faculty of Science, King Abdulaziz University, P.O. Box 80203, Jeddah 21589, Saudi Arabia. E-mail: mmrahman@kau.edu.sa
gCenter for Nanotechnology, Department of Natural Sciences, Coppin State University, 2500 W. North Ave., Baltimore, MD 21216, USA

Received 18th December 2025 , Accepted 18th December 2025

First published on 20th January 2026


Abstract

Retraction of ‘Synthesis of novel pyrazole incorporating a coumarin moiety (PC) for selective and sensitive Co2+ detection’ by Faisal M. Aqlan et al., New J. Chem., 2019, 43, 12331–12339, https://doi.org/10.1039/C9NJ02176K.


The Royal Society of Chemistry hereby wholly retracts this New Journal of Chemistry article due to evidence that the peer review process was manipulated.

An investigation has established that the acceptance of this article was based on a fake reviewer report. The report was submitted from an email account for a recommended reviewer which was provided to the journal by the submitting author. The named reviewer does not have access to the email address and they confirmed that they did not submit the report. We have therefore concluded that the peer review process for this paper was compromised.

The co-authors were not aware of, did not participate in, and did not authorise any irregularities in the peer review process. The reviewer’s recommendation and subsequent actions were managed solely by the last corresponding author.

All co-authors were informed of the decision to retract this article. Tamer S. Saleh acknowledged this decision, Mohammed Rahman did not agree with the decision and the other co-authors did not respond to any correspondence.

 

Sally Howells-Wyllie

18th December 2025

Executive Editor, New Journal of Chemistry


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