2.写出庚烷的各种异构体的结构式,并用系统命名法命名?

如题所述

你好!庚烷的分子式是C7H16,它有9种同分异构体,它们的结构式和命名如下:

    正庚烷:CH3(CH2)5CH3

    2-甲基己烷:CH3CH(CH3)(CH2)4CH3

    3-甲基己烷:CH3(CH2)2CH(CH3)(CH2)2CH3

    2,2-二甲基戊烷:(CH3)2C(CH2)4CH3

    3,3-二甲基戊烷:(CH3)2C(CH2)2C(CH3)2

    2,3-二甲基戊烷:(CH3)C(CH3)(CH2)C(CH3)2

    2,4-二甲基戊烷:(CH3)C(CH3)(CH2)C(CH3)(CH2)

    3-乙基戊烷:(H5C6)-H5-C-H5-C-H5-C-H5-C-H5-C-H5-C-H5-C-H5-C-H5-C-H5

    乙基戊烷:(H5C6)-H5-C-H5-C-H5-C-H5-C-H6

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