Small Molecule Activation Mediated by a Thorium Terminal Imido Metallocene

Small Molecule Activation Mediated by a Thorium Terminal Imido Metallocene
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钍末端亚氨基茂金属介导的小分子活化

DOI:
10.1021/acs.organomet.5b00454
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发表时间:
2015
期刊:
影响因子:
2.8
通讯作者:
Walter Marc D.
Walter Marc D.
中科院分区:
化学2区
文献类型:
--
作者:
Zhou Enwei;Ren Wenshan;Hou Guohua;Zi Guofu;Fang De-Cai;Walter Marc D.

文献摘要

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无碱钍末端亚氨基[η5-1,2,4-(Me3C)3C5H2]2ThN(p-tolyl) (1)可活化多种小分子,如吡啶衍生物、胺、硼烷、氯硅烷、元素硒和α,β-不饱和酯。 1与吡啶、吡啶N-氧化物、2-甲基吡啶N-氧化物、对甲苯胺、Ph2NH、9-硼双环[3.3.1]壬烷(9-BBN)、PhSiH2Cl、元素硒、PhSeSePh和甲基丙烯酸甲酯(MMA)反应形成酰胺基吡啶基络合物[η5-1,2,4-(Me3C)3C5H2]2Th(NH-对甲苯基)(η2-C,N-C5H4N) (2)、[η5-1,2,4-(Me3C)3C5H2]2Th(NH-对甲苯基)(κ2-C,O-C5H4NO) (3),和[η5-1,2,4-(Me3C)3C5H2]2Th(NH-p-甲苯基)(κ2-C,O-2-MeC5H3NO) (4),二酰胺络合物 [η5-1,2,4-(Me3C)3C5H2]2Th(NH-p-甲苯基)2(5) 和[η5-1,2,4-(Me3C)3C5H2]2Th(NH-对甲苯基)(NPh2) (6), 氨基氢络合物 [η5-1,2,4-(Me3C)3C5H2]2Th(H)[N(对甲苯基)B(C8H14)] (7), 氨基氯化物络合物[η5-1,2,4-(Me3C)3C5H2]2Th(Cl)[N(对甲苯基)SiH2Ph] (8),酰氨基硒配合物 [η5-1,2,4-(Me3C)3C5H2]2Th[N(对甲苯基)Se–Se] (9) 和{[η5-1,2,4-(Me3C)3C5H2]Th(SePh)}2[μ-N(对甲苯基)]2(10),和酰胺烯醇复合物[η5-1,2,4-(Me3C)3C5H2]2Th[N(对甲苯基)CH2C(Me)C(OMe)O](11)。新配合物2-3和6-11通过包括单晶X射线衍射在内的各种光谱技术进行了表征。此外,密度泛函理论(DFT)研究补充了实验研究。
The base-free thorium terminal imido [η5-1,2,4-(Me3C)3C5H2]2ThN(p-tolyl) (1) activates a variety of small molecules such as pyridine derivatives, amines, boranes, chlorosilane, elemental selenium, and α,β-unsaturated esters. Reaction of1with pyridine, pyridineN-oxide, 2-methylpyridineN-oxide,p-toluidine, Ph2NH, 9-borabicyclo[3.3.1]nonane (9-BBN), PhSiH2Cl, elemental selenium, PhSeSePh, and methyl methacrylate (MMA) formed the amido pyridyl complexes [η5-1,2,4-(Me3C)3C5H2]2Th(NH-p-tolyl)(η2-C,N-C5H4N) (2), [η5-1,2,4-(Me3C)3C5H2]2Th(NH-p-tolyl)(κ2-C,O-C5H4NO) (3), and [η5-1,2,4-(Me3C)3C5H2]2Th(NH-p-tolyl)(κ2-C,O-2-MeC5H3NO) (4), diamide complexes [η5-1,2,4-(Me3C)3C5H2]2Th(NH-p-tolyl)2(5) and [η5-1,2,4-(Me3C)3C5H2]2Th(NH-p-tolyl)(NPh2) (6), amido hydrido complex [η5-1,2,4-(Me3C)3C5H2]2Th(H)[N(p-tolyl)B(C8H14)] (7), amido chloride complex [η5-1,2,4-(Me3C)3C5H2]2Th(Cl)[N(p-tolyl)SiH2Ph] (8), amido selenido complexes [η5-1,2,4-(Me3C)3C5H2]2Th[N(p-tolyl)Se–Se] (9) and {[η5-1,2,4-(Me3C)3C5H2]Th(SePh)}2[μ-N(p-tolyl)]2(10), and amido enolyl complex [η5-1,2,4-(Me3C)3C5H2]2Th[N(p-tolyl)CH2C(Me)C(OMe)O] (11). The new complexes2–3and6–11were characterized by various spectroscopic techniques including single crystal X-ray diffraction. Furthermore, density functional theory (DFT) studies complement the experimental investigations.