Used in the following papers:

Fantacci S, De Angelis F, Sgamellotti A, Re N (2001) Organometallics 20:4031.
Fantacci S, De Angelis F, Sgamellotti A, Re N (2002) Organometallics 21:4090.
De Angelis F, Fantacci S, Sgamellotti A, Re N (2003) Theor. Chem. Acc. 110:196.