Revue des Sciences Fondamentales Appliquées
Volume 9, Numéro 1, Pages 183-205
2017-01-01

Synthesis, Crystal Structures, Hydrogen Bonding Graph-sets And Theoretical Studies Of Nickel (+ii) Co-ordinations With Pyridine-2,6-dicarboxamide Oxime

Authors : Hamdaoui A. . Messai A. . Benyza N. . Lanez T. . Sayin K. .

Abstract

The pyridine-2,6-dicarboxamide oxime, C7H9N5O2, was Synthesis and characterises with 1H NMR and FTIR spectroscopy . The reaction of this ligand with nickel (II) perchlorate yielded green crystals of formula [Ni(C7H9N5O2)2]2+,2[ClO4]-, which crystallized in the monoclinic space group C2/c with a = 14.915(2), b = 0.895(2), c = 8.205(1) Å, β = 114.69(1), and Z = 4. The complex consists of discrete cations (+II) and one perchlorate anion, the cations existing in a slightly distorted octahedral complex with bonding through the heterocyclic and oxime nitrogen atoms. The structure is held together through N-H…O, O-H…O and C-H...O hydrogen bonds occurring between the coordinated oxime molecules and the perchlorate counter-ion. Computational investigations of nickel(II) complex are done by using M062X method with 6-31+G(d)(LANL2DZ) basis set in vacuo.

Keywords

Oxime complexe; Crystal structure; Hydrogen-bonding graph-set; DFT; M062X method; 6-31+G(d)(LANL2DZ) basis.

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