SEARCH Articles Figures Tables Characteristics of Cyclometalation Reactions for Organometallic Intramolecular-Coordination Five-Membered Ring Compounds Cyclometalations Cyclometallation Organolithium compounds, cyclometallated Reasons Why Organometallic Intramolecular-Coordination Five-Membered Ring Compounds Are Extremely Easily Synthesized Through Cyclometalation Reactions