Intramolecular hydrogen bonds in heterodisubstituted ferrocene diamides

Abstract

Keywords: hydrogen bonding of coordination compounds, ferrocene compounds, homogeneous catalysisStrong intramolecular hydrogen bond was observed in various substituted ferrocene 1,1'-diamides pepared via homogeneous catalytic carbonylation starting from 1,1'-diiodoferrrocene. Structure of (N'-butyl-carbamoyl)-morfolino ferrocene carboxamide was determined: Existance of thione-thiol tautomeric forms is the structural characteristic of the thiosemicarbazones derived from salicylaldehyde with the thione form dominating in the solid state. In the structuraly characterized complexes vanadium was found in the tetragonal-pyramidal environment with the oxo group in the apical position and thiosemicarbazone acting as a tridentate ligand. A molecule of solvent completes the coordination sphere of vanadium.[1] Cindrić M.,