Design, Synthesis, and Evaluation of Nonaqueous Silylamines for Efficient CO 2 Capture

A series of silylated amines have been synthesized for use as reversible ionic liquids in the application of post‐combustion carbon capture. We describe a molecular design process aimed at influencing industrially relevant carbon capture properties, such as viscosity, temperature of reversal, and enthalpy of regeneration, while maximizing the overall CO 2 ‐capture capacity. A strong structure–property relationship among the silylamines is demonstrated in which minor structural modifications lead to significant changes in the bulk properties of the reversible ionic liquid formed from reaction with CO 2 .