In this review, we discuss gas phase experimentation centered on the measurement of acidity and proton affinity of substrates that are useful for understanding catalytic mechanisms. The review is divided into two parts. The first covers examples of organocatalysis, while the second focuses on biological catalysis. The utility of gas phase acidity and basicity values for lending insight into mechanisms of catalysis is highlighted.
Keywords: acidity; enzymes; organocatalysts; proton affinity; reaction mechanisms.
© 2022 John Wiley & Sons Ltd.