A multimetallic iron(II)-lithium complex as a catalyst for epsilon-caprolactone polymerization
2016 | journal article. A publication with affiliation to the University of Göttingen.
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A multimetallic iron(II)-lithium complex as a catalyst for epsilon-caprolactone polymerization
Geng, C.; Peng, Y.; Wang, L.; Roesky, H. W. & Liu, K. (2016)
Dalton Transactions, 45(40) pp. 15779-15782. DOI: https://doi.org/10.1039/c6dt00078a
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Details
- Authors
- Geng, Chao; Peng, Ying; Wang, L.; Roesky, Herbert W.; Liu, Kaipeng
- Abstract
- Treatment of the lithium salt of beta-ketimine with FeCl2(THF)(1.5) in the presence of LiN(SiMe3)(2) and water affords the multimetallic iron(II)-lithium complex 1, [(L-Me)(2)Fe](3)Li2O [ where L-Me = MeC(O) CHC(NMe)Me]. In complex 1 three separated (L-Me)(2)Fe units are bound together by one Li2O species, which leads to the formation of an interesting {Fe3Li2O} core structure. Complex 1 can be used as a single-component initiator for the ring-opening polymerization of e-caprolactone at room temperature, achieving a monomer conversion of 98% within 100 min, and a narrow molecular weight distribution (PDI = 1.28) of the resulting polymer.
- Issue Date
- 2016
- Status
- published
- Publisher
- Royal Soc Chemistry
- Journal
- Dalton Transactions
- ISSN
- 1477-9234; 1477-9226
- Sponsor
- Fundamental Research Funds for Central Universities of China [DUT14LK16]
