Synthesis and Structural Characterization of Zn(II) and Co(III) Complexes of Picolinoyl(4-ethylthiosemicarbazide)
Main Article Content
Abstract
Reaction of ZnCl2 and two equivalents of picolinoyl(4-ethylthiosemicarbazide), HL, in MeOH in the presence of a supporting base like Et3N results in the neutral complex [Zn(L)2] (1). A similar reaction of CoCl2, however, brings about a cobalt(III) cationic complex, which could be separated as its chloride salt [Co(L)2]Cl (2). The spectroscopic studies and X-ray structure analyses indicate that in 1 and 2, the metal ions are octahedrally coordinated by two (Npyridine, S, N1) chelates belonging to two singly deprotonated tridentate ligands {L–}.
Keywords:
Acyl thiosemicarbazides, Zn(II) complexes, Co(III) complexes.
References
[1] N. P. Prajapati, H. D. Patel, Novel Thiosemicarbazone Derivatives and Their Metal Complexes: Recent Development, Synth, Commun, Vol. 49, 2019, pp. 2767-2804, https://doi.org/10.1080/00397911.2019.1649432.
[2] H. H. Nguyen, T. T. Pham, N. O. P. Thi, V. H. Tran, C. D. Le, B. V. Hoi, T. N. Trieu, C. T. Pham, Syntheses, Structures, and Anticancer Activities of a Series of Trinuclear Cu(II) Complexes with N-methylanthraniloyl(4-phenylthiosemicarbazide), J. Mol. Struct, Vol. 1249, 2022, pp. 131680, https://doi.org/10.1016/j.molstruc.2021.131680.
[3] H. H. Nguyen, Q. T. Pham, Q. M. Phung, C. D. Le, T. T. Pham, T. N. O. Pham, C. T. Pham, Syntheses, Structures and Biological Activities of Pd(II) and Pt(II) Complexes with some 1-picolinoyl-4-substituted Thiosemicarbazides,
J. Mol. Struct, Vol. 1269, 2022, pp. 133871,
https://doi.org/10.1016/j.molstruc.2022.133871.
[4] K. K. Du, S. X. Liu, Influence of pH values on the Self-Assembly in Three Trinuclear Nickel Complexes with Bridging Ligand N-salicylyl 4-phenyl-thiosemicarbazide, J. Mol, Struct, Vol. 874, 2008, pp. 138-144,
https://doi.org/10.1016/j.molstruc.2007.03.048.
[5] S. I. Orysyk, V. V. Bon, O. A. Zholob, V. I. Pekhnyo, V. V. Orysyk, Y. L. Zborovskii, M. V. Vovk, Rhodium(III), palladium(II) and platinum(II) Complexes with 2-(2-hydroxybenzoyl)-N-methylhydrazinecarbothioamide: Syntheses, Structures, and Spectral Characteristics, Russ, J. Coord, Chem, Vol. 40, 2014, pp. 160-170,
https://doi.org/10.1134/S1070328414030063.
[6] P. B. A. Bharti, N. K. Singh, M. K. Bharty, NNS Tridentate Thiosemicarbazide and 1,3,4-thiadiazole-2-amine Complexes of some Transition Metal Ions: Syntheses, Structure and Fluorescence Properties, J. Coord, Chem, Vol. 69, 2016, pp. 1258-1271, https://doi.org/10.1080/00958972.2016.1160074.
[7] W. S. Wu, W. D. Cheng, D. S. Wu, H. Zhang, Y. J. Gong, Y. Lu, Crystal Structure, Magnetic
and Optical Properties of (2-picoloylcarbonyl) thiosemicarbazonatocopper(II)d([Cu3L2(H2O)2]·2ClO4·3H2O, and L=[C7H8N4OS]2−), Inorg. Chem. Commun, Vol. 9, 2006, pp. 559-562,https://doi.org/10.1016/j.inoche.2006.02.025.
[8] N. H. Huy, N. G. Huy, T. T. Nguyet, P. C. Thang, Synthesis and Structural Characterization of Picolinoyl (4-ethylthiosemicarbazide) and its New Heteroleptic Cu(II) Complex, VNU Journal of Science: Natural Sciences and Technology, 38, 2022, pp. 12-17, https://10.25073/2588-1140/vnunst.5342.
[9] Bruker, APEX2, Bruker AXS Inc., Madison, Wisconsin, USA, 2014.
[10] O. V. Dolomanov, L. J. Bourhis, R. J. Gildea, J. A. K. Howard, H. Puschmann, OLEX2: A Complete Structure Solution, Refinement and Analysis Program, J. Appl, Crystallogr, Vol. 42, 2009, pp. 339-341, https://10.1107/S0021889808042726.
[11] P. T. Thuy, L. C. Dinh, N. G. Huy, P. T. N. Oanh, P. C. Thang, Synthesis and Structural Characterization of N-methylanthraniloyl-(4-ethylthiosemicarbazide) and its Cu(II) Trinuclear Complex, Vietnam J. Chem, Vol. 59, 2021,
pp. 290-295, https://doi.org/10.1002/vjch.202000129.
[2] H. H. Nguyen, T. T. Pham, N. O. P. Thi, V. H. Tran, C. D. Le, B. V. Hoi, T. N. Trieu, C. T. Pham, Syntheses, Structures, and Anticancer Activities of a Series of Trinuclear Cu(II) Complexes with N-methylanthraniloyl(4-phenylthiosemicarbazide), J. Mol. Struct, Vol. 1249, 2022, pp. 131680, https://doi.org/10.1016/j.molstruc.2021.131680.
[3] H. H. Nguyen, Q. T. Pham, Q. M. Phung, C. D. Le, T. T. Pham, T. N. O. Pham, C. T. Pham, Syntheses, Structures and Biological Activities of Pd(II) and Pt(II) Complexes with some 1-picolinoyl-4-substituted Thiosemicarbazides,
J. Mol. Struct, Vol. 1269, 2022, pp. 133871,
https://doi.org/10.1016/j.molstruc.2022.133871.
[4] K. K. Du, S. X. Liu, Influence of pH values on the Self-Assembly in Three Trinuclear Nickel Complexes with Bridging Ligand N-salicylyl 4-phenyl-thiosemicarbazide, J. Mol, Struct, Vol. 874, 2008, pp. 138-144,
https://doi.org/10.1016/j.molstruc.2007.03.048.
[5] S. I. Orysyk, V. V. Bon, O. A. Zholob, V. I. Pekhnyo, V. V. Orysyk, Y. L. Zborovskii, M. V. Vovk, Rhodium(III), palladium(II) and platinum(II) Complexes with 2-(2-hydroxybenzoyl)-N-methylhydrazinecarbothioamide: Syntheses, Structures, and Spectral Characteristics, Russ, J. Coord, Chem, Vol. 40, 2014, pp. 160-170,
https://doi.org/10.1134/S1070328414030063.
[6] P. B. A. Bharti, N. K. Singh, M. K. Bharty, NNS Tridentate Thiosemicarbazide and 1,3,4-thiadiazole-2-amine Complexes of some Transition Metal Ions: Syntheses, Structure and Fluorescence Properties, J. Coord, Chem, Vol. 69, 2016, pp. 1258-1271, https://doi.org/10.1080/00958972.2016.1160074.
[7] W. S. Wu, W. D. Cheng, D. S. Wu, H. Zhang, Y. J. Gong, Y. Lu, Crystal Structure, Magnetic
and Optical Properties of (2-picoloylcarbonyl) thiosemicarbazonatocopper(II)d([Cu3L2(H2O)2]·2ClO4·3H2O, and L=[C7H8N4OS]2−), Inorg. Chem. Commun, Vol. 9, 2006, pp. 559-562,https://doi.org/10.1016/j.inoche.2006.02.025.
[8] N. H. Huy, N. G. Huy, T. T. Nguyet, P. C. Thang, Synthesis and Structural Characterization of Picolinoyl (4-ethylthiosemicarbazide) and its New Heteroleptic Cu(II) Complex, VNU Journal of Science: Natural Sciences and Technology, 38, 2022, pp. 12-17, https://10.25073/2588-1140/vnunst.5342.
[9] Bruker, APEX2, Bruker AXS Inc., Madison, Wisconsin, USA, 2014.
[10] O. V. Dolomanov, L. J. Bourhis, R. J. Gildea, J. A. K. Howard, H. Puschmann, OLEX2: A Complete Structure Solution, Refinement and Analysis Program, J. Appl, Crystallogr, Vol. 42, 2009, pp. 339-341, https://10.1107/S0021889808042726.
[11] P. T. Thuy, L. C. Dinh, N. G. Huy, P. T. N. Oanh, P. C. Thang, Synthesis and Structural Characterization of N-methylanthraniloyl-(4-ethylthiosemicarbazide) and its Cu(II) Trinuclear Complex, Vietnam J. Chem, Vol. 59, 2021,
pp. 290-295, https://doi.org/10.1002/vjch.202000129.