Paul Pfeiffer (chemist)

Paul Pfeiffer (21 April 1875 – 4 March 1951) was an influential German chemist.

He received his Ph.D. at the University of Zurich, studying under Alfred Werner, the "father of coordination chemistry".

[1] Pfeiffer was considered Werner's most successful student and became Werner's assistant until, due to a dispute with his mentor, he left first for Rostock, then Karlsruhe, and finally Bonn.

The Pfeiffer effect, which involves interactions between chiral solutes, is named after his discoveries.

[2] His group first made the salen ligands, which gave the first artificial oxygen carriers.