Herein, we report the novel axially chiral bis-Ag(I)-MIC and, bis-Au(I)-MIC complexes bearing axially chiral bis-1,2,3-triazolium-derived mesoionic carbene (tz-MIC) ligands were synthesized. The enantiopure R-BINOL was employed as a basic unit to synthesize a axially chiral bis-1,2,3-triazolium-derived mesoionic carbene (tz-MIC) ligands (1–2)a. In particular, the axially chiral bis-1,2,3-triazolium-derived mesoionic carbene (tz-MIC) ligands (1–2)a, were obtained from the reaction of corresponding bis-1,2,3-triazole ligand precursor with methyl and ethyl iodide in 82−90% yields. Novel axially chiral bis-Ag(I)-MIC complexes (1 − 2)b, were prepared by the treatment of corresponding axially chiral bis-1,2,3-triazolium-derived mesoionic carbene (tz-MIC) iodide salts, (1 − 2)a, with Ag₂O via in-situ deprotonation method in 69−86% yields. Novel axially chiral bis-Au(I)-MIC complex-2c was synthesized from their respective novel axially chiral bis-Ag(I)-MIC complex-2b, using transmetallation reaction with (SMe₂)AuCl in 70% yield. All these novel axially chiral bis-Ag(I)-MIC and bis-Au(I)-MIC complexes were isolated for the first time and structurally characterized by ¹H NMR and ¹³C{¹H}-NMR spectroscopy, FT-IR spectroscopy, mass spectrometry, elemental analysis, specific optical rotation and, single crystal X-ray crystallography.

在这里，我们报道了新型的轴向手性双-Ag（I）-MIC和带有轴向手性双-1,2,3-三唑鎓的中性离子卡宾（tz-MIC）配体的双-Au（I）-MIC配合物合成的。对映体R-BINOL被用作基本单元，以合成轴向手性双1,2,3-三唑鎓衍生的中性离子卡宾（tz-MIC）配体（1-2）a。特别地，轴向手性的双-1,2,3-三唑鎓的中性离子碳烯（tz-MIC）配体（1-2）a是从相应的双-1,2,3-三唑配体前体的反应获得的甲基碘和乙基碘的产率为82-90％。新型轴向手性bis-Ag（I）-MIC络合物（1-2）b中，通过相应的轴向手性双- 1,2,3-三氮唑衍生的介离子卡宾（TZ-MIC）碘化物盐的处理制备，（1-2）一，有Ag ₂澳经在69 -situ去质子化方法−86％的产率。新型的轴向手性双-Au（I）-MIC配合物2c由它们各自的新型轴向手性双-Ag（I）-MIC配合物2b合成，并与（SMe ₂）AuCl进行金属转移反应，产率为70％。首次分离了所有这些新颖的轴向手性双-Ag（I）-MIC和双-Au（I）-MIC配合物，并通过¹ H NMR和¹³ C { ¹1 H-NMR光谱，FT-IR光谱，质谱，元素分析，比旋光度和单晶X射线晶体学。