Donor-substituted Cyclopentadienyls and Indenyls

5 Donor-substituted Cyclopentadienyls and Indenyls. - Of the donor-substituted Cp compounds reported, oxygen donors were by far most prevalent, with all but four reports outlining the description of compounds with ether/alkoxo substituents. Of the four exceptions, three described nitrogen donor compounds, and there was but a single example of compounds with more covalent (phosphorus) donor atoms tethered to the Cp ligand. 

Similarly, chiral KCp reagents with either oxygen or nitrogen donors react with [(ri -C8H8)Ln( a-Cl)(THF)]2 (Ln = Sm, Lu) to yield the mixed Cp/COT lanthanide complexes [(ri -C8H8) (S )-ri ri -C5H4CH2CHMeOMe ], [(r - 

---