Publisher: American Chemical Society (ACS)

Issue: 48

License: http://pubs.acs.org/page/policy/authorchoice_ccby_termsofuse.html

Publication date(s): 2015/12/09 (print) 2015/11/30 (online)

Pages: 15078-15081

Volume: 137 Issue: 48

Journal: Journal of the American Chemical Society

Link: https://pubs.acs.org/doi/pdf/10.1021/jacs.5b09913

URL: http://dx.doi.org/10.1021/jacs.5b09913

Homodinuclear catalysts have good precedent for epoxide and carbon dioxide/anhydride copolymerizations; in contrast, so far pure heterodinuclear catalysts are unknown. The synthesis and properties of a heterodinuclear Zn(II)/Mg(II) complex coordinated by a symmetrical macrocyclic ligand are reported. It shows high polymerization selectivity, control, and significantly greater activity compared to either of the homodinuclear analogues or any combinations of them. Indeed, compared to a 50:50 mixture of the homodinuclear complexes, it shows 5 times (CO2/epoxide) or 40 times (anhydride/epoxide) greater activity.