Dewar-Chatt-Duncanson · Synergic Metal–Alkene Bond
unseel.com · Zeise's salt K[PtCl₃(C₂H₄)] · σ donation + π backbonding
C=C length 1.337 Å
ν(C=C) 1623 cm⁻¹
State
Pt / metal d orbital
σ donation (C=C π → metal)
π backbonding (metal d → π*)
ethylene C₂H₄
Unseel.com · The Dewar-Chatt-Duncanson Model