The role of torsional isomers of planarly chiral nonbridged bis(indenyl)metal type complexes in stereoselective propene polymerization

Article abstract of DOI:10.1021/ja00064a022

Reaction of enantiomerically pure (l-neomenthylindenyl)lithium with ZrCl₄(THF)₂ gave the three diastereomeric bis(1-neomenthylindenyl)zirconium dichloride complexes 4a-A, -B, and -C, in a 93:2:5 ratio. Similarly, a 82:7:11 mixture of