在过渡金属有机化学中,金属卡宾配合物具有重要地位,它不仅对人们理解过渡金属和主族元素的成键具有重要理论意义,而且这类配合物具有一些优秀和独特的反应与催化性能。许多过渡金属卡宾配合物被合成和应用,但是稀土金属卡宾配合物是个例外。稀土金属离子的d轨道能级明显高于其它过渡金属的d轨道能级,造成稀土和 In transition metal organic chemistry, metal carbene complexes play an important role. It not only has important theoretical significance for people to understand the bonding of transition metals and main group elements, but also has some excellent and unique reaction and catalytic properties. Many transition metal carbene complexes are synthesized and used, but rare earth metal carbene complexes are an exception. The d orbital energy levels of rare earth metal ions are significantly higher than the d orbital energy levels of other transition metals, resulting in rare earth and