Nguyen Thu Ha, Nguyen Hung Huy

Main Article Content

Abstract

The mixed-metal complex with the composition of [GdCd2(L)3](PF6) (H2L = 2,6-pyridinedicarbonyl bis(N,N-diethylthiourea) has been synthesized by the ‘one-pot’ reaction of GdCl3∙6H2O, Cd(CH3OO)2∙2H2O and H2L with 1 : 2 : 3 molar ratio in methanolic solution. The structure of the obtained complex is characterized by IR spectroscopy, mass spectrometry and single-crystal X-ray diffraction. The results reveal a cationic trinuclear mixed-metal complex composed of one Gd(III) cation,  two Cd(II) cations and three dianionic ligands {L2–}.  The charge of the complex is compensated by a PF6 anion.

Keywords: 2,6-pyridinedicarbonyl bis(N,N-diethylthiourea), mixed-metal complexes, Cd(II) complexes, rare-earth metal complexes.

References

[1] U. Schroder, L. Beyer, J. Sieler, Synthesis and X-Ray Structure of a New Silver(I) Coordination Polymer Assembled as One-dimensional Chains, Inorg, Chem, Commun, Vol. 3, No. 11, 2000, pp. 630-633, http://doi:10.1016/s1387-7003(00)00163-5.
[2] L. C. Dinh, V. T. K. Thoa, T. T. Nguyet, N. H. Huy, Synthesis and Study on the Mixed-metal Complexes of Ni2+ and Rare-earth Metal Ln3+ with N,N-pyridine-2,6-dicarbonyl bis(diethylthiourea) Ligand, Vietnam J.chem,
Vol. 51(2AB), 2013, pp. 198-202 (in Vietnamese).
[3] L. C. Dinh, V. T. K. Thoa, T. T. Nguyet, N. M. Hai, N. H. Huy, Synthesis and Study of the Structure of the Mixed-metal Complexes of Zn2+ and Ln3+ with 2,6-pyridine Dicarbonyl-bis(N,N-diethylthiourea) Ligand, Vietnam J.chem, Vol. 51(3AB), 2013, 373-377 (in Vietnamese).
[4] H. H. Nguyen, J. J. Jegathesh, A. Takiden, D. Hauenstein, C. T. Pham, C. D. Le, U. Abram, 2, 6-Dipicolinoylbis (N, N-dialkylthioureas) as Versatile Building Blocks for Oligo-and Polynuclear Architectures, Dalton Trans. Vol. 45, No. 26, 2016, pp. 10771-10779, https://doi.org/10.1039/ C6DT01389A.
[5] C. T. Pham, T. H. Nguyen, K. Matsumoto, H. H. Nguyen, CuI/CuII Complexes with Dipicolinoylbis(N,N‐diethylthiourea): Structures, Magnetism, and Guest Ion Exchange, European Journal of Inorganic Chemistry, Vol. 38, 2019, pp. 4142-4146, https://doi.org/10.1002/ejic.201900865
[6] C. T. Pham, H. H. Nguyen, A. Hagenbach, U. Abram, Iron(III) Metallacryptand and Metallacryptate Assemblies Derived from Aroylbis(N,N-diethylthioureas), Inorg, Chem, Vol. 56, No. 18, 2017, pp. 11406-11416, https://doi.org/10.1021/acs.inorgchem.7b01909.
[7] 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, http://dx.doi.org/10.1107/S0021889808042726.
[8] G. Sheldrick, Crystal Structure Refinement with SHELXL, Acta Crystallogr, Section. C, Vol. 71, 2015, pp. 3-8,
https://doi.org/10.1107/ S2053229614024218.
[9] A. Rodenstein, J. Griebel, R. Richter, R. Kirmse, Synthese, Struktur und EPR-Untersuchungen von binuklearen Bis(N,N,N‴,N‴-tetraisobutyl-N′,N″-isophthaloylbis¬(thioureato))-Komplexen des CuII, NiII, ZnII, CdII und PdII. Z. Anorg. Allg. Chem. Vol. 634, 2008. pp. 867-874, https://doi.org/ 10.1002/ zaac.200700513.
[10] M. Andruh, I. Ramade, E. Codjovi, O. Guillou, O. Kahn, J. C. Trombe, Crystal Structure and Magnetic Properties of [Ln2Cu4] Hexanuclear Clusters (where Ln = Trivalent Lanthanide), Mechanism of the Gadolinium(III)-copper(II) Magnetic Interaction, J. Am, Chem. Soc, Vol. 115, 1993, pp. 1822-1829, https://doi.org/10.1021/ ja00058a029.