Citation: Xing Hong Zhang, Shang Chen, Xian Ming Wu, Xue Ke Sun, Fei Liu, Guo Rong Qi. Highly active double metal cyanide complexes: Effect of central metal and ligand on reaction of epoxide/CO₂[J]. Chinese Chemical Letters, ;2007, 18(7): 887-890. doi: 10.1016/j.cclet.2007.05.017 shu

Highly active double metal cyanide complexes: Effect of central metal and ligand on reaction of epoxide/CO₂

a Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, China;
b College of Chemistry and Chemical Engineering, Jishou University, Jishou 416000, China

Received Date: 23 January 2007

Fund Project: The authors are grateful for support of the National Natural Science Foundation of China (No. 50273031) and China Postdoctoral Science Foundation (No. 20060400339).

Various novel double metal cyanide (DMC) catalysts were successfully prepared by modifying the central metal (M) and one of cyanide ion (CN^-) in Zn_a[M(CN)_b]_c complex. Such modifications have significant impact on the catalytic efficiency as well as the polymer selectivity for the reaction of PO/CO₂. Zn-Ni(Ⅱ) DMC is a potential catalyst for alternating copolymerization of PO/CO₂, and DMC catalysts based on Zn₃[Co(CN)₅X]₂ (X=Br^- and N₃^-) exhibit moderate efficiency for the production of polycarbonates.This research presents the preliminary exploration of novel DMC complex via chemical modification of its central metal and ligand.
- Double metal cyanide complexes,
- Epoxide,
- CO₂,
- Polymerization
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