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Issue 9, 2018
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Crystal structure, physicochemical properties, Hirshfeld surface analysis and antibacterial activity assays of transition metal complexes of 6-methoxyquinoline

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Abstract

Five monomeric complexes of Co(II), Cu(II), Ni(II), Zn(II) and Ag(I) with 6-methoxyquinoline (6-MeOQ) as ligand have been prepared, and their crystal structures have been determined by single X-ray diffractions. The Cu(II), Ni(II) and Zn(II) complexes are formulated as M(6-MeOQ)2Cl2, completing MN2Cl2 coordination spheres. On the other hand, Co(II) and Ag(I) compounds are ionic with formulae [Ag(6-MeOQ)2]+ NO3 and H(6-MeOQ)+[Co(6-MeOQ)Cl3] (where H(6-MeOQ)+ is the protonated ligand). Hirshfeld surface analysis was employed to study the intermolecular interactions in the crystal lattices and from these studies it was found that π-stacking contacts play an important role. Besides, the complexes have been characterized by FTIR, UV-visible and emission spectroscopies. The singlet oxygen production and fluorescence quantum yields were measured for all the complexes employing steady-state methodologies. Finally, the antibacterial activity of the complexes was screened against both Gram-positive and Gram-negative bacteria.

Graphical abstract: Crystal structure, physicochemical properties, Hirshfeld surface analysis and antibacterial activity assays of transition metal complexes of 6-methoxyquinoline

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Publication details

The article was received on 06 Feb 2018, accepted on 06 Apr 2018 and first published on 11 Apr 2018


Article type: Paper
DOI: 10.1039/C8NJ00661J
Citation: New J. Chem., 2018,42, 7166-7176
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    Crystal structure, physicochemical properties, Hirshfeld surface analysis and antibacterial activity assays of transition metal complexes of 6-methoxyquinoline

    C. Villa-Pérez, I. C. Ortega, A. Vélez-Macías, A. M. Payán, G. A. Echeverría, D. B. Soria and G. C. Valencia-Uribe, New J. Chem., 2018, 42, 7166
    DOI: 10.1039/C8NJ00661J

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