Coordination of N, O-donor Appended Schiff Base Ligand N, N’-bis (3-Methoxy Salicylidenimino-1,3-diaminopropane) towards Nickel (II), Copper (II) and Zinc (II) : Synthèses, Crystal Structure
Moussa Faye
Department of Chemistry, UFR SATIC, Alioune DIOP University, Bambey 21400, Senegal.
Mariama Sarr
Department of Chemistry, UFR SATIC, Alioune DIOP University, Bambey 21400, Senegal.
Mbossé Ndiaye Guèye
Department of Chemistry, Cheikh Anta Diop University, Dakar 10700, Senegal.
Farba Bouyagui Tamboura
Department of Chemistry, UFR SATIC, Alioune DIOP University, Bambey 21400, Senegal.
Ibrahima Elhadj Thiam
Department of Chemistry, Cheikh Anta Diop University, Dakar 10700, Senegal.
Simon Coles
UK National Crystallography Service, School of Chemistry, Faculty of Engineering and Physical Sciences, University of Southampton, Southampton SO17 1BJ, United Kingdoms.
James Orton
UK National Crystallography Service, School of Chemistry, Faculty of Engineering and Physical Sciences, University of Southampton, Southampton SO17 1BJ, United Kingdoms.
Moussa Dieng *
Department of Chemistry, UFR SATIC, Alioune DIOP University, Bambey 21400, Senegal.
Mohamed Gaye
Department of Chemistry, Cheikh Anta Diop University, Dakar 10700, Senegal.
*Author to whom correspondence should be addressed.
Abstract
New complexes prepared by the reaction of N,N’-bis(3-methoxysalicylidenimino-1,3-diaminopropane) (H2L) with Ni(II), Zn(II) and Cu(II) ions are reported in this paper. The H2L ligand is structurally characterized by elemental analysis, NMR, infrared, UV-Vis spectroscopies, conductance and magnetic room temperature measurement. The mononuclear complex of Ni(II) (C19H24N2NiO6) is characterized by single X-ray diffraction. The compound crystallizes in the orthorhombic system in the space group Pnma with the unit cell parameters a = 7.3754(5) Å, b = 21.9576(13) Å, c = 11.5546(6) Å, α = 90°, β = 90°, γ = 90° The ligand H2L acts in tetradentate fashion in its di-deprotonated form. Two coordinated water molecules complete the coordination sphere. The environment around the Ni(II) center is best described as an octahedral geometry.
Keywords: Schiff base, X-ray, mononuclear complex, tetra dentate