Synthesis and investigation of novel two-coordinate 1st row transition metal complexes

新型二配位第一排过渡金属配合物的合成与研究

• 批准号: 270846862
• 负责人: Professor Dr. Qing Ye
• 金额: --
• 依托单位: Department of Chemistry
• 依托单位国家: 德国
• 项目类别: Research Fellowships
• 财政年份: 2014
• 资助国家: 德国
• 起止时间: 2013-12-31 至 2015-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/270846862?language=en
• 关键词: Synthesis; investigation; novel; two; coordinate

Future research in the group of Prof. Tilley will concern the synthesis and investigation of novel two-coordinate 1st-row transition metal complexes. Due to the low coordination number and inherent electron deficient nature on the metal center, this class of compounds has highly unusual structural and electronic properties, and is expected to have rich reaction chemistry in terms of catalysis and functionalization of different kinds of substrates. However, the number of these complexes is strongly limited, in particular for earlier transition metals (Ti, V, Cr, Mn). In addition, the reaction chemistry of two-coordinate complexes is relatively unexplored. Recently a two-coordinate bis(amido) nickel(II) complex has been successfully synthesized by Prof. Tilley and co-workers. Preliminary studies on this coordinatively unsaturarted complex have proven its catalytic performance associated with carbon-carbon cross-coupling and olefin hydrosilation reactions. These results prompt us to do in-depth studies on this class of complexes. Future work will focus on (i) variation of metals and ligands, in particular on the synthesis of two-coordinate complexes of earlier transition metals Ti, V, Cr, (ii) their reaction chemistry associated with redox, activation of small molecules and C-H bond activation, (iii) the establishment of catalytic processes for C-C cross coupling and olefin polymerization.

蒂利教授的研究小组今后的研究将关注新型双配位第一行过渡金属配合物的合成和研究。由于金属中心的低配位数和固有的缺电子性质，这类化合物具有非常不寻常的结构和电子性质，并且有望在不同种类底物的催化和功能化方面具有丰富的反应化学。然而，这些络合物的数量是非常有限的，特别是对于早期过渡金属（Ti、V、Cr、Mn）。此外，双配位络合物的反应化学相对未被探索。最近，蒂利教授及其合作者成功地合成了一种双配位氨基镍配合物。对该配合物的初步研究证明了其在碳-碳交叉偶联和烯烃硅氢化反应中的催化性能。这些结果促使我们对这类配合物进行深入的研究。未来的工作将集中在（i）金属和配体的变化，特别是早期过渡金属Ti，V，Cr的双配位络合物的合成，（ii）它们与氧化还原，小分子活化和C-H键活化相关的反应化学，（iii）建立C-C交叉偶联和烯烃聚合的催化过程。