标题：Synthesis and Characterization of Iron, Cobalt, and Nickel [PNP] Pincer Amido Complexes by N-H Activation
作者：Zhao, Hua; Li, Xiaoyan; Zhang, Shumiao; Sun, Hongjian
作者机构：[Zhao, Hua; Li, Xiaoyan; Zhang, Shumiao; Sun, Hongjian] Shandong Univ, Minist Educ, Sch Chem & Chem Engn, Key Lab Special Funct Aggregated Mat, Jinan 更多
通讯作者地址：[Sun, HJ]Shandong Univ, Minist Educ, Sch Chem & Chem Engn, Key Lab Special Funct Aggregated Mat, Shanda Nanlu 27, Jinan 250199, Peoples R China.
来源：ZEITSCHRIFT FUR ANORGANISCHE UND ALLGEMEINE CHEMIE
关键词：N-H activation; [PNP]-pincer complexes; Iron; Cobalt; Nickel
摘要：The N-H bond activation product [PNP]-Fe-I(PMe3)(2) (2) was obtained at room temperature by the reaction of diphosphinito [PNP] pincer ligand ((Ph2P(C6H4))(2)NH (1)) with Fe(PMe3)(4). Treatment of 1 with Co(PMe3)(4), CoCl(PMe3)(3) and CoMe(PMe3)(4) afforded the same N-H bond activation product [PNP]-Co-I(PMe3)(2) (3). In order to have a better understanding of the mechanism of formation of 3, in situ IR and H-1 NMR spectroscopic investigations were conducted. The reaction of 1 with Ni(PMe3)(4) afforded the ligand replacement complex 4 while a [PNP]-(NiMe)-Me-II complex 5 was obtained via deprotonation through the reaction of 1 with NiMe2(PMe3)(3). The molecular structures of 2-4 were confirmed by X-ray diffraction analysis.