新型三角形全金属芳香性络合物 [LM]3+(M = Au, Ag)的合成、表征及应用

三角形全金属芳香性络合物[L3M3]+是芳香性环丙烯正离子[C3H3]+或者[H3]+离子在金属领域中的同系物。该类络合物在金属有机合成，催化和配位化学领域的应用潜力巨大。新型三角形全金属芳香性络合物[L3M3]+(M = Au，Ag；L = NHC，PAr3) 及其杂环的合成，应用及理论研究是以已知的具有σ，π 或者δ-芳香性的[Ga3]2-，[Au3]+，[Pd3]+和[Zn3]+结构为研究基础。该系统性研究将拓展三角形全金属芳香络合物的现有范畴，将三角形全金属芳香性的概念引入由过渡金属Ag组成的体系中。创新性地实现[Ag3]+和[Au3]+(L= NHC，PAr3)与Lewis酸Au+，Ag+，Cu+离子的配位反应和在经典催化反应中的应用，如[Ag3]+催化的端炔的羧酸化反应和[Au3]+催化的胺基化合物的酰胺化反应，掌握其催化机理，开辟新的催化模式。

Triangular all-metal aromatics [L3M3]+ are analogues of aromatic cyclopropenyl cation [C3H3]+ or [H3]+ ion in metallic fields. These complexes show great potentials in applications to organometallic synthesis, catalysis and coordination chemistry. The proposed synthesis, applications and theoretical study of novel triangular all-metal aromatics [L3M3]+(M = Au, Ag; L = NHC, PAr3) and their heteroaromatics are based on the published triangular all-metal aromatic structures like [Ga3]2-, [Au3]+, [Pd3]+ and [Zn3]+ which possesses σ, π or δ-aromaticities. This systematic study could broaden the scope of triangular all-metal aromatics, bring the triangular all-metal aromaticity concept to Ag involved system and further achieve their applications in coordination reactions with Lewis acids Au+, Ag+, Cu+ and in catalysis, like [Ag3]+ catalyzed carboxylation reaction of terminal alkynes and [Au3]+ catalyzed carbonylation reaction of amines, learn their catalytic mechanisms and open a new catalytic mode.