Metal-Mediated Controllable Creation of Secondary, Tertiary, and Quaternary Carbon Centers: A Powerful Strategy for the Synthesis of Iron, Cobalt, and Copper Complexes with in Situ Generated Substitut

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• 作者：Yanmei Chen ; Lei Li ; Zhou Chen ; Yonglu Liu ; Hailiang Hu ; Wenqian Chen ; Wei Liu ; Yahong Li ; Tao Lei ; Yanyuan Cao ; Zhenghui Kang ; Miaoshui Lin ; Wu Li
• 刊名：Inorganic Chemistry
• 出版年：2012
• 出版时间：September 17, 2012
• 年：2012
• 卷：51
• 期：18
• 页码：9705-9713
• 全文大小：636K
• 年卷期：v.51,no.18(September 17, 2012)
• ISSN：1520-510X

文摘

An efficient strategy for the synthesis of a wide variety of coordination complexes has been developed. The synthetic protocol involves a solvothermal in situ metal鈥搇igand reaction of picolinaldehyde, ammonium acetate, and transition-metal ions, leading to the generation of 12 coordination complexes supported by a novel class of substituted 1-pyridineimidazo[1,5-a]pyridine ligands (L1鈥?b>L5). The ligands L1鈥?b>L5 were afforded by metal-mediated controllable conversion of the aldehyde group of picolialdehyde into a ketone and secondary, tertiary, and quaternary carbon centers, respectively. Complexes of various nuclearities were obtained: from mono-, di-, and tetranuclear to 1D chain polymers. The structures of the in situ formed complexes could be controlled rationally via the choice of appropriate starting materials and tuning of the ratio of the starting materials. The plausible mechanisms for the formation of the ligands L1鈥?b>L5 were proposed.