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论文类型：期刊论文

发表时间：2013-08-21

发表刊物：DALTON TRANSACTIONS

收录刊物：SCIE、EI、PubMed、Scopus

卷号：42

期号：31

页面范围：11295-11303

ISSN号：1477-9226

摘要：A series of aluminum alkyl complexes nacnac(R)AlMe(2) (2a-2h) bearing aliphatic N-substituted beta-diketiminate ligands (nacnac(R)H = N,N'-dialkyl-2-amino-4-iminopent-2-enes), were prepared from the reaction of trialkyl aluminum and the corresponding beta-diketimines. All these aluminum complexes were characterized by NMR, elemental analysis and HRMS spectroscopy. The molecular structures of complexes 2a, 2c and 2h were confirmed by single-crystal X-ray diffraction. These aluminum alkyl complexes show notable activity towards the ring-opening polymerization of e-caprolactone in the absence and presence of alcohol, and the resulting polymers have narrow molecular weight distributions.