Low-Valent Titanium Bis(phospholyl) Chemistry: A Configurationally Stable Chiral Phosphatitanocene

The first example of a low-valent phosphatitanocene has been prepared and structurally
characterized, and a chiral Ti(II) phosphametallocene was prepared and was found to have
a significantly higher barrier to isomerization than the Ti(IV) analogue. Descriptions of the
molecular orbitals of the two complexes offer an explanation of the difference.