Stereoisomerism of Octahedral Titanium cis-Tetrafluoro Complexes with Ph2P(O)CH2CH(OH)Me Enantiomers According to 19F NMR Data

Resumo

Effect of enantiomers of a monodentate ligand on the stereoisomerism of mixed octahedral cis-tetrafluoro complexes of d⁰ transition metals has been studied by ¹⁹F{¹H} and ³¹P{¹H} NMR by the example of TiF₄ complexation in CH₂Cl₂ with Ph₂P(O)CH₂CH(OH)Me (L) containing asymmetric carbon atom in the aliphatic hydrocarbon group that constitutes a racemic mixture of enantiomers. Composition of complexes formed in solution has been determined, conclusion has been drawn on the relative stereochemical configuration of the chiral and meso stereoisomers of octahedral complex cis-TiF₄L₂ on the basis of analysis of ¹⁹F NMR spectra, using the heterotropism concept.