Corrigendum to “Synthesis and characterization of novel Cu (II) and Zn (II) complexes of 5-{[(2-Hydroxyethyl) sulfanyl] methyl}-8-hydroxyquinoline as effective acid corrosion inhibitor by experimental and computational testings” [Chem. Phys. Lett. 754 (2020) 137771] (Chemical Physics Letters (2020) 754, (S0009261420306862), (10.1016/j.cplett.2020.137771))

The authors regret that to provide corrections to the below section. On behalf of all authors, we hereby confirm that the correction submitted in the Corrigendum does not affect in any way the scientific content, experimental data, results, interpretations, or conclusions of the original article. The revision solely consists of textual adjustments in Section 3.2.6. Surface analysis (SEM and EDS) analysis to improve clarity and accuracy, without introducing any changes to the overall scientific meaning of the study. 3.2.6. Surface analysis (SEM and EDS) To evaluate the degree of protection of the MS surface by the two tested complexes (Q-Cu and Q-Zn), we carried out a scanning electron spectroscopy analysis [64]. The immersion of the ironic substrate in molar hydrochloric acid for 6 h shows that the surface of the M-steel was destroyed by corrosion (Fig. 6A). While, in the case of adding the tested complexes (Q-Cu and Q-Zn) in the corrosive solution, it is observed that the MS surface becomes to be well protected (Fig. 6B, C). The scanning electron microscope analysis also showed that our complexes have a corrosion inhibiting effect for M-steel (MS) in 1.0 M HCl. The EDS spectra (Fig. 6B and C) revealed the presence of new elements compared to the EDS spectrum of the control sample (Fig. 6A), which confirms the presence of the tested complexes (Q-Cu and Q-Zn) on the steel surface.[Figure presented] Fig. 6. SEM image and EDS spectra of surface (MS) after immersion in 1.0 M HCl for 6 h without inhibitor (A), and with 10−3 M inhibitor (B) Q-Cu and (C) Q-Zn. On behalf of all the authors, we apologize to Chemical Physics Letters team for any inconvenience this may cause.