Abstract
X-ray structures of five bis(N - R-salicylaldiminato)zinc(II) complexes with R = ethyl, n-propyl, i-propyl, n-butyl and 4-thia-n-hexyl were determined. The N2O2 coordination geometry is in all cases quasi-tetrahedral with the dihedral angle between the planes of the two chelate rings ranging from 84 to 89°. Bond lengths and angles in the coordination sphere are not affected by the nature of R or by a methoxy substituent in 4-position of the salicylaldimine. The potentially tridentate ONS ligand N(4-thia-n-hexyl)salicylaldimine is also coordinated only in a bidentate NO fashion.
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