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一、同分异构体的类型及书写方法1.同分异构体的类型(1)碳链异构:指因分子中碳原子的结合顺序不同而引起的异构现象,如C5H12有三种同分异构体,即正戊烷、异戊烷和新戊烷.(2)位置异构:指因分子中取代基或官能团在碳链(或碳环)上的位置不同而引起的异构现象,如邻二甲苯、间二甲苯、对二甲苯.(3)官能团异构:指因分子中由于官能团不同而分属不同类物质的异构体.2.同分异构体的书写(1)烷烃:烷烃只有碳链异构,书写时要注意写全而不要写重
First, the type and writing method of isomers 1. Isomer types (1) Carbon chain isomerism: Refers to the heterogeneous phenomenon caused by the different carbon atoms in the molecular binding order, such as C5H12 has three Isomers, namely, n-pentane, isopentane and neopentane (2) positional isomerism: refers to the molecular or functional groups on the carbon chain (or carbon ring) on the location of different Such as o-xylene, m-xylene, p-xylene (3) Functional group isomers: refers to the different functional groups due to different molecules belong to different isomers .2. Isomers of writing (1) Alkane: alkane only carbon chain isomerism, writing should pay attention to write the whole and do not write weight