Hydrogen Bond Induced Assembly and Crystal Structures of Dioxovanadium(v) Complexes With Schiff Bases

Abstract

Two new dioxovanadium(V) complexes, [VO 2 L 1 ] (1) and [VO 2 L 2 ] 2 (2), where L 1 and L 2 are the deprotonated forms of 4-chloro-2-[(2-piperidin-1-ylethylimino) methyl]phenol and 2-ethoxy-6-[(2-ethylaminoethylimino)methyl]phenol, respectively, have been synthesized and characterized by i.r. spectra and single crystal X-ray diffraction. Complex (1) is a mononuclear dioxovanadium complex, with the V atom five-coordinate in a distorted square pyramidal geometry. Complex (2) is a dinuclear dioxovanadium complex, with the V atom six-coordinate in an octahedral geometry. The V•••V distance is 3.096(2) Å. The hydrogen bonds among the Schiff base ligands can influence the structures of the vanadium complexes.

Formation of 2d Sheets Through H h Interaction in the Crystal Packing of 1,2-Bis(3-Bromobenzylidene)hydrazne

“…5 Also, a wide numbers of papers have focused on the metal complexes of Schiff bases in the field of coordination, biological and material chemistry. [6][7][8] These compounds also suitable for NLO (nonlinear optically active) materials. 9 In this regard, crystal structure of eight monohalogenated symmetrical bis(x-halobenzylidene)hydrazine have been reported.…”