Synthesis and characterization of a novel coordination compound based on 2, 6-dimethylpiperazine
Hannachi, A., García, C. J. G., Valkonen, A., & Smirani, W. (2022). Synthesis and characterization of a novel coordination compound based on 2, 6-dimethylpiperazine. Journal of Molecular Structure, 1267, Article 133569. https://doi.org/10.1016/j.molstruc.2022.133569
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© 2022 Elsevier
Here we show the synthesis and complete characterization, including single crystal X-ray structure determination, of the first compound containing the monoprotonated 2,6-dimethylpiperazinium cation: (C6H15N2)+. Compound [Co(NCS)4(C6H15N2)2] (1) crystallizes in the monoclinic P21/n space group and contains an octahedral Co(II) ion surrounded by four -NCS and two protonated 2,6-dimethylpiperazine ligands (C6H15N2)+. There are some N-H•••S intermolecular hydrogen bonds that generate a three-dimensional H-bonded network. Compound 1 has been characterized by single-crystal and powder X-Ray diffraction, infrared, UV-Vis and RMN spectroscopies, thermogravimetric analysis (TGA) and differential thermal analysis (DTA). The magnetic properties in the temperature range indicate the presence of isolated high spin Co(II) ions with the expected spin-orbit coupling. The antibacterial activity of compound 1 shows a higher antibacterial activity than other related complexes due to the presence of the piperazine-derivative ligands.
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The authors gratefully acknowledge the support of the Tunisian Ministry of Higher Education and Scientific Research. We also thank the Generalidad Valenciana (Prometeo/2019/076) and the grant CTQ2017-87201-P funded by MCIN/AEI/10.13039/ 501100011033 and by “ERDF A way of making Europe” for financial support.License
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