环戊二烯基阴离子作为一个η~5-六电子配体,在金属有机化学和配位化学,特别是在过渡金属和稀土金属有机化学里已被广泛使用,因此,研究环戊二烯衍生物,尤其是具有不同空间效应和电子性质的取代基的环戊二烯基对它的 Cyclopentadienyl anions as an η ~ 5-hexa electron ligands have been widely used in metalorganic chemistry and coordination chemistry, especially in transition metal and rare earth metal organic chemistry. Therefore, Their, in particular, cyclopentadienyl substituents having different steric and electronic substituents