π-BACK BONDING & Relation between Overall Stablilty Constants & Stepwise Constants CO-Pi acceptor 1) σ-bond L M 2) M L (dπ – π*) Back Bonding- tendency cationic carbonyls are unstable IR Spectra to study C-O bond for formation of Carbonyl Compounds – What are organometallic compounds and homoleptic metal carbonyl compounds? Spectrochemical series - Instability Constant calculations for IIT JEE, NEET JAM GATE CSIR UGC NET SAT SET CBSE