大家知道,烷烃分子中碳原子超过3个就有同分异构了。随着烷烃分子中碳原子数目的增加,异构体的数字也相应增加,据计算4个碳原子烷烃只有2个同分异构体,5个碳原子则有3个;6个碳原子有5个;7个碳原子则有9个;8个碳原子有18个,9个碳原子有35个,10个碳原子就有75个异构体。如果是20个碳原子的烷烃,异构体数竟有336319个异构体。 As we all know, alkane molecules are heterogeneous with more than three carbon atoms. As the number of carbon atoms in the alkane molecule increases, the number of isomers also increases. According to calculations, there are only 2 isomers of 4 carbon atoms and 3 of 5 carbon atoms; there are 6 carbon atoms. Five; 7 carbon atoms, 9; 8 carbon atoms, 18, 9 carbon atoms, 35, 10 carbon atoms have 75 isomers. If it is a 20-carbon alkane, the number of isomers is 336,319 isomers.