Reversible Metal‐Free Carbon Dioxide Binding by Frustrated Lewis Pairs

Hot and bothered? Frustrated Lewis pairs comprising phosphine and borane react to reversibly bind and release CO2, offering a rare example of metal-free CO2 sequestration. The mechanism of formation of these CO2 derivatives 1 and 2 (see scheme) by almost simultaneous PC and OB bond formation was characterized by quantum chemical calculations. Detailed facts of importance to specialist readers are published as ”Supporting Information”. Such documents are peer-reviewed, but not copy-edited or typeset. They are made available as submitted by the authors. Please note: The publisher is not responsible for the content or functionality of any supporting information supplied by the authors. Any queries (other than missing content) should be directed to the corresponding author for the article.