自从对硼烷研究以来,人们合成了大量的含有簇状结构的化合物。这些簇状化合物可由主族元素原子构成,或由过渡金属原子构成,也可既有主族元素又有过渡金属原子构成。寻找这些簇状化合物的成键规律、结构规则对充实和发展化学键理论有重大意义。自五十年代开始,已有不少结构规则问世,如著名的wade规则。但是现有的规则方法都有局限性。我们 Since borane research, a large number of compounds containing cluster-like structures have been synthesized. These cluster compounds may be composed of main group element atoms or transition metal atoms, or may be composed of both main group elements and transition metal atoms. Looking for these clusters of bond formation rules, structural rules to enrich and develop the chemical bond theory of great significance. Since the 1950s, there have been many structural rules, such as the famous wade rules. However, the existing rules and methods have limitations. we