Fluoro derivatives of bis(salicylideneaminato-N,O)copper(II) and -oxovanadium(IV)
Abstract:
The structures of five complexes of fluorine-containing bidentate salicylideneamine Schiff base ligands are reported. These are the bis-ligand copper(II) complexes of the Schiff bases derived from salicylaldehyde and 4-fluoro-, [Cu(C(13)H(9)FNO)(2)], 3-fluoro-4-methyl-, [Cu(C(14)H(11)FNO)(2)], 3,5-bis(trifluoromethyl)-, [Cu(C(15)H(8)F(6)NO)(2)], and 4-trifluoromethoxyanilines, [Cu(C(14)H(9)F(3)NO(2))(2)], and the bis-ligand oxovanadium(IV) complex of the Schiff base derived from salicylaldehyde and 4-trifluoromethoxyaniline, [VO(C(14)H(9)F(3)NO(2))(2)]. Three of the copper complexes have square-planar coordination at the metal, imposed by the virtue of symmetry, but the immediate coordination environment of the copper in the 3,5-bis(trifluoromethyl) complex is intermediate between square planar and tetrahedral. The coordination environment at the metal of the vanadium complex can be described as distorted square pyramidal.
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