European Journal of Chemistry

Synthesis, physical studies and crystal structure determination of Y(III) and Er(III) complexes of 1-(pyridin-2-yl)-2-(pyridine-2-ylmethylene)hydrazine

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Mbosse Ndiaye Gueye
Moussa Dieng
Djiby Lo
Ibrahima Elhadji Thiam
Aliou Hamady Barry
Mohamed Gaye
Abdou Salam Sall
Pascal Retailleau


Two isotype mononuclear yttrium(III) and erbium(III) complexes, {[Y(HL)(OAc)2(H2O)2]. (H2O)∙(NO3)} (1) and {[Er(HL) (OAc)2(H2O)2].(H2O)∙(NO3)} (2), where HL is the neutral Schiff base ligand 1-(pyridin-2-yl)-2-(pyridine-2-ylmethylene)hydrazine, and OAc is the acetate anion, have been synthesized and characterized by physicochemical methods and single crystal X-ray determination. Both complexes crystallizes in the triclinic space group Pī with unit cell dimensions for complex of Y(III) a = 7.909 (2) Å, b = 11.718 (4) Å, c = 12.497 (3) Å,    α = 78.907 (3)°, b = 73.840 (3)°, γ = 72.074 (3)°, V = 1051.26 (6) Å3, Z = 2, R1 = 0.051 and    wR2 = 0.112 and for complex of Er(III)a = 7.913 (1) Å, b = 11.719 (2) Å, c = 12.487 (2) Å,          α = 78.832 (1)°, α = 73.674 (1)°, γ = 72.012 (1)°, V = 1049.64 (3) Å3, Z = 2, R1 = 0.028, and   wR2 = 0.062. In both complexes, the coordination polyhedra around Ln(III) atoms are best described as a distorted tricapped trigonal prism. Antioxidant activities of the ligand and its Y(III) and Er(III) complexes are studied.

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How to Cite
Gueye, M. N.; Dieng, M.; Lo, D.; Thiam, I. E.; Barry, A. H.; Gaye, M.; Sall, A. S.; Retailleau, P. Synthesis, Physical Studies and Crystal Structure Determination of Y(III) and Er(III) Complexes of 1-(pyridin-2-Yl)-2-(pyridine-2-ylmethylene)hydrazine. Eur. J. Chem. 2017, 8, 137-143.

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