闭式B2H2巢式BHn+4蛛网式B2H 蛛式-BHn+6 BsHg五硼烷(9)C4 B4H10四硼烷(10)C2y 闭合式1BH12 B6H1o六硼烷(101Cs B。H1五硼烷11C 闭合式1B12H12 BH14+硼烷(14)C2闭式−BnHn 2− 巢式−BnHn+4 蛛网式−BnHn+6