Copyright (c) 2022 AJC
This work is licensed under a Creative Commons Attribution 4.0 International License.
Mechanochemical Synthesis of Biologically Active Transition Metal Complexes of 1H-4,4,6-Trimethyl-3,4-dihydropyrimidine-2-thione
Corresponding Author(s) : Pooja Sethi
Asian Journal of Chemistry,
Vol. 34 No. 5 (2022): Vol 34 Issue 5, 2022
Abstract
A new series of metal complexes using 1H-4,4,6-trimethyl-3,4-dihydro-2-pyrimidinethione (HTMPT) ligand were synthesized mechanochemically and also evaluated for antibacterial and DNA photocleavage potential. Complexes of 1H-4,4,6-trimethyl-3,4-dihydro-2-pyrimidinethione (HTMPT) [M(tmpt)2(H2O)n] (M = Cu2+, Mn2+, Ni2+, Co2+; n = 2 and M = Zn2+, Cd2+, Pd2+; n = 0) were synthesized in 1:2 metal ligand ratio. All the metal complexes were characterized by 1H NMR, FTIR, UV-vis, ESI-mass spectrometry, molar conductivity, magnetic and thermal measurements. 1H NMR and IR results showed that the coordination occurs via N and S forming four-membered cyclic ring. Mass spectrum showed the formation of 1:2 metals to ligand stoichiometry. The antibacterial activity of synthesized compounds was evaluated by agar well diffusion method. All the synthesized compounds were evaluated for their DNA nicking activity and found most of metal complexes exhibited good DNA photocleavage activities.
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S.I. Mostafa, M.A. Kabil, E.M. Saad and A.A. El-Asmy, J. Coord. Chem., 59, 279 (2006); https://doi.org/10.1080/00958970500266149
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A.A. Osowole and E.J. Akpan, J. Eur. Appl. Sci., 4, 14 (2012).
A.A. Osowole, R. Kempe, R. Schobert and K. Effenberger, Synth. React. Inorg. Met. Org. Chem. Nano Met. Chem., 41, 825 (2011); https://doi.org/10.1080/15533174.2011.591310
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Z.H. Chohan, A. Scozzafava and C.T. Supuran, J. Enzyme Inhib. Med. Chem., 17, 261 (2002); https://doi.org/10.1080/1475636021000006261
Z.H. El-Wahab, M.M. Mashaly, A.A. Salman, B.A. El-Shetary and A.A. Faheim, Spectrochim. Acta A, 60, 2861 (2004); https://doi.org/10.1016/j.saa.2004.01.021
M. Belicchi Ferrari, S. Capacchi, G. Pelosi, G. Reffo, P. Tarasconi, R. Albertini, S. Pinelli and P. Lunghi, Inorg. Chim. Acta, 286, 134 (1999); https://doi.org/10.1016/S0020-1693(98)00383-1
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