文献类型：期刊文献

英文题名：Single, double and triple deprotonation of a β-diketimine bearing pendant pyridyl group and the corresponding rare-earth metal complexes

作者：Xu, Xin[1,2,3];Chen, Yaofeng[1];Zou, Gang[2,3];Sun, Jie[1]

机构：[1]Chinese Acad Sci, Shanghai Inst Organ Chem, State Key Lab Organomet Chem, Shanghai 200032, Peoples R China;[2]E China Univ Sci & Technol, Adv Mat Lab, Shanghai 200237, Peoples R China;[3]E China Univ Sci & Technol, Inst Fine Chem, Shanghai 200237, Peoples R China

年份：2010

卷号：39

期号：16

起止页码：3952

外文期刊名：DALTON TRANSACTIONS

收录：;EI(收录号：20101512834818);WOS:【SCI-EXPANDED(收录号:WOS:000276377100021)】；

基金：This work was supported by the National Natural Science Foundation of China (Grant Nos. 20872164 and 20821002), Chinese Academy of Sciences and Shanghai Municipal Committee of Science and Technology (Grant No. 07JC14063).

语种：英文

外文关键词：Rare earths - Single crystals - Synthesis (chemical) - Lanthanum compounds - Metal complexes

摘要：A new beta-diketimine bearing the pendant pyridyl group, CH(3)C(2,6-((i)Pr)(2)C(6)H(3)NH)CHC(CH(3))(NCH(2)-C(5)NH(4)) (L1), was synthesized. The reaction of L1 with one equivalent of Sc(CH(2)SiMe(3))(3)(THF)(2) at room temperature gave a singly deprotonated product (L1-H)Sc(CH(2)SiMe(3))(2) (1). Y(CH(2)SiMe(3))(3)(THF)(2) under the same conditions led to the unexpected dimer [(L1-H(3))Y(THF)](2) ( 2), in which the ligand precursor L1 was triply deprotonated. The reaction of L1 with Y(CH(2)SiMe(3))(3)(THF)(2) at -35 degrees C provided a mixture of singly deprotonated product (L1-H)Y(CH(2)SiMe(3))(2) (3) and doubly deprotonated product (L1-H(2))Y(CH(2)SiMe(3))(THF)(2) (4). The reactions of L1 with Ln[N(SiMe(3))(2)](3) gave only singly deprotonated products (L1-H) Ln[N(SiMe(3))(2)](2) (5: Ln = Y; 6: Ln = La). The complexes 1, 2 and 4-6 have been characterized by single-crystal X-ray diffraction.