(2)Alkali metal complex a. Species Aromatic radical-anions: b. Initiation Sodium naphthalene c. Solubility Lithium naphthalene preparation a Na complex(greenish blue color) Alkali metal Aromatic compound initiator(2) Alkali metal complex - Na Na + + [ ] e complex (greenish blue color) . preparation initiator a. Species b. Initiation c. Solubility Aromatic radical-anions: Sodium naphthalene Lithium naphthalene Alkali metal Aromatic compound