Open, Ring! Highly electrophilic cationic complexes as catalysts in immortal ring-opening polymerization of lactide
Friday, May 18, 2012 - 13:30
in Physics & Chemistry
(Phys.org) -- Certain complexes of large alkaline earth elements such as calcium, strontium, and barium are efficient catalysts for various organic reactions. However, the stability of these heteroleptic complexes in solution is compromised by ligand scrambling. The β-diketiminato ligand has proven especially useful in stabilizing reactive heteroleptic complexes of calcium, but to a lesser extent those of larger alkaline earth elements.