Isospecific Living Polymerization of 1-Hexene by a Readily Available Nonmetallocene C2-Symmetrical Zirconium Catalyst [J. Am. Chem. Soc. 2000, 122, 10706−10707].

In this paper the authors used the term "metallocene" to refer to compounds containing at least one Cp-type ligand.This paper reports the first Cp-type free catalyst for living and isotactic polymerization of 1-hexene.Two other catalysts for living and isotactic 1-hexene polymerization were reported previously, which were cited in ref 10.Reference 10 also should have been cited after the last sentence of the first paragraph.