Tricarbonyl(fulvene)chromium complexes, (C5H4CR2)Cr(CO)3, react with HgCl2 and SnCl4, respectively, to give stable 1 : 1 adducts. The metal basicity of the tricarbonyl(fulvene)chromium complexes is largely determined by the electronic properties of the substituents R at the exocyclic carbon atom of the fulvene ligand. The first crystalline protonation product of a fulvene complex was obtained by treatment
三羰基(富勒烯)铬配合物(C 5 H 4 CR 2)Cr(CO)3分别与HgCl 2和SnCl 4反应,得到稳定的1:1加合物。三羰基(富烯)铬配合物的金属碱性在很大程度上取决于在富烯配体的环外碳原子上取代基R的电子性质。通过治疗[η获得的富烯复合物的第一结晶质子化产物5 -6,6-双(二甲氨基)亚甲基环戊二烯]的Cr(CO)3与HBF 4。