Titanium-47 and -49 nuclear magnetic resonance spectroscopy: Chemical applications

Direct observation of 47,49Ti resonances in a series of TiX4 (X = Cl, Br, I, OPri, NEt2), (C5H5)2TiX2 (X = F, Cl, Br, I, N3, NCS), and TiX62− (X = F, Br) complexes is reported. 47,49Ti nuclei are equally sensitive to changes of halogen ligands in the (C5H5)2MX2 series as the 91Zr nucleus. The inverse halogen dependence of δ(47,49Ti) is extended and placed on a more quantitative basis in the (C5H5)2TiX2 systems. The TiF62− ion reveals septets …