Mechanistic Pathways for N₂O Elimination from trans-R₃Sn-O-N═N-O-SnR₃ and for Reversible Binding of CO₂ to R₃Sn-O-SnR₃ (R = Ph, Cy)

Abstract

Cy )) at room temperature. Evacuation results in fast loss of bound CO 2 and regeneration of 2 Ph and 2 Cy . Variable temperature data for formation of 3 Cy yield ΔH o = −8.7 ± 0.6 kcal•mol −1 , ΔS o = −17.1 ± 2.0 cal•mol −1 •K −1 , and ΔG o 298K = −3.6 ± 1.2 kcal•mol −1 . DFT studies were performed and provide additional insight into the energetics and mechanisms for the reactions.