New synthon in the design of ansa-cyclopentadienyl ligands with variable substitution at the bridging atom

1. Antiñolo, A.
2. Fernández-Galán, R.
3. Otero, A.
4. Prashar, S.
5. Rivilla, I.
6. Rodríguez, A.M.
7. Maestro, M.A.