Functional Groups ■官能团(Functional Groups): The atomor group ofatoms that defines the structure of a particular family of organic compounds and,at the same time determines their properties Structuralfeatures that allow for classification of compounds into families The structuralsimilarities in these compounds lead to chemical similarities ●官能团：有机分子中比较活泼、易发生化学反应的 原子或原子团 ●官能团：赋予有机物一类特征结构并决定其性质的 原子或原子团Functional Groups ◼官能团（Functional Groups)： ⚫The atom or group of atoms that defines the structure of a particular family of organic compounds and, at the same time determines their properties ⚫Structural features that allow for classification of compounds into families ⚫The structural similarities in these compounds lead to chemical similarities ⚫官能团: 有机分子中比较活泼、易发生化学反应的 原子或原子团 ⚫官能团: 赋予有机物一类特征结构并决定其性质的 原子或原子团