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所属单位：材料科学与技术学院

发表刊物：Appl. Organomet. Chem.

摘要：A series of para-toluene sulfonamide ligands [TsNHPr-i(HL1), TsNHBu-t(HL2), TsNHPh(HL3), TsNHPhMe-p(HL4), TsNHPhOMe-p(HL5)] were synthesized by amidation using para-toluene sulfonyl chloride reacting with different primary amines. A series of homoleptic lanthanide complexes (Ln L3, 1–10) (Ln = La, L = L1(1), Ln = Gd, L = L2(2), Ln = La, L = L2(3), Ln = Gd, L = L2(4), Ln = La, L = L3(5), Ln = Gd, L = L3(6), Ln = La, L = L4(7), Ln = Gd, L = L4(8), Ln = La, L = L5(9), Ln = Gd, L = L5(10)) were prepared by amine elimination reactions of the ligands with Ln[N(SiMe3)2]3(Ln = La, Gd). Complexes 1, 3, 5, 7 and 9 were all characterized by NMR spectra, and the structures of complex 3 was determined by single-crystal X-ray diffraction. Complex 3 crystallizes a binuclear cluster, consisting of two La3+and six (TsNBu-t)−anions. Three (TsNBu-t)−anions are chelating to each La3+as bidentate model with O and N forming three-membered chelate rings; one of three anions is bridging to another La3+via oxygen. All complexes were characterized using elemental analysis and infrared spectra. The catalytic properties of complexes 1–10 for the ring-opening polymerization of Ε-caprolactone were studied and the results showed that all complexes are efficient initiators for this ring-opening polymerization reaction. Copyright © 2017 John Wiley & Sons, Ltd.

卷号：31

期号：12

ISSN号：0268-2605

是否译文：否

发表时间：2017-12-01

收录刊物：EI