Expression of concern: Copper nanoparticle anchored biguanidine-modified Zr-UiO-66 MOFs: a competent heterogeneous and reusable nanocatalyst in Buchwald–Hartwig and Ullmann type coupling reactions

Hojat Veisi; Narges Neyestani; Mozhgan Pirhayati; Sheida Ahany Kamangar; Shahram Lotfi; Taiebeh Tamoradi; Bikash Karmakar

doi:10.1039/D4RA90111H

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Expression of concern: Copper nanoparticle anchored biguanidine-modified Zr-UiO-66 MOFs: a competent heterogeneous and reusable nanocatalyst in Buchwald–Hartwig and Ullmann type coupling reactions

Hojat Veisi,*^a Narges Neyestani,^a Mozhgan Pirhayati,^b Sheida Ahany Kamangar,^a Shahram Lotfi,^a Taiebeh Tamoradi*^c and Bikash Karmakar*^d

Author affiliations

* Corresponding authors

^a Department of Chemistry, Payame Noor University (PNU), Tehran, Iran
E-mail: hojatveisi@yahoo.com

^b Department of Applied Chemistry, Faculty of Science, Malayer University, Malayer, Iran

^c Chemistry Department, Production Technology Research Institute-ACECR, Ahvaz, Iran
E-mail: t.tabss@yahoo.com

^d Department of Chemistry, Gobardanga Hindu College, 24-Parganas (North), India
E-mail: bkarmakar@ghcollege.ac.in

Abstract

Expression of concern for ‘Copper nanoparticle anchored biguanidine-modified Zr-UiO-66 MOFs: a competent heterogeneous and reusable nanocatalyst in Buchwald–Hartwig and Ullmann type coupling reactions’ by Hojat Veisi et al., RSC Adv., 2021, 11, 22278–22286, https://doi.org/10.1039/D1RA02634H.

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Copper nanoparticle anchored biguanidine-modified Zr-UiO-66 MOFs: a competent he…

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DOI: https://doi.org/10.1039/D4RA90111H
Article type: Expression of Concern
Submitted: 23 Sep 2024
Accepted: 23 Sep 2024
First published: 27 Sep 2024
This article is Open Access

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RSC Adv., 2024,14, 30954-30954

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Expression of concern: Copper nanoparticle anchored biguanidine-modified Zr-UiO-66 MOFs: a competent heterogeneous and reusable nanocatalyst in Buchwald–Hartwig and Ullmann type coupling reactions

H. Veisi, N. Neyestani, M. Pirhayati, S. Ahany Kamangar, S. Lotfi, T. Tamoradi and B. Karmakar, RSC Adv., 2024, 14, 30954 DOI: 10.1039/D4RA90111H

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Expression of concern: Copper nanoparticle anchored biguanidine-modified Zr-UiO-66 MOFs: a competent heterogeneous and reusable nanocatalyst in Buchwald–Hartwig and Ullmann type coupling reactions

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Expression of concern: Copper nanoparticle anchored biguanidine-modified Zr-UiO-66 MOFs: a competent heterogeneous and reusable nanocatalyst in Buchwald–Hartwig and Ullmann type coupling reactions

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