Intermolecular Lithium η2-Alkene and κ2-Alkane Complexes: Synthesis, Bonding, and Facile Interconversion - Mikhail A. Bogachev; Alexander N. Selikhov; Anton V. Cherkasov; Rinat R. Aysin; Sergey S. Bukalov; Alexander A. Trifonov (Journal of the American Chemical Society, 2025)