Dictionary entry
chemical group
化学基团
A group of atoms that behaves as a single entity in chemical compounds.
In use
The hydroxyl is a common chemical group found in alcohols.
Different chemical groups can change the properties of a molecule.
This reaction attaches a new chemical group to the ring.
a + chemical group
化学基团通常可以独立存在或作为分子的一部分。
A hydroxyl is a chemical group consisting of one oxygen and one hydrogen atom.
羟基是一种由一个氧原子和一个氢原子组成的化学基团。
the chemical group of + noun
The chemical group of the molecule determines its reactivity.
该分子的化学基团决定了其反应性。
different + chemical groups
复数形式常用于描述多种基团。
Different chemical groups can be attached to the carbon backbone.
不同的化学基团可以连接到碳骨架上。
Common mistakes
This molecule contains a hydroxyl chemical group.This molecule contains a hydroxyl functional group.
错误地将'chemical group'用于指代具体的官能团（如羟基），正确的术语应为'functional group'。在有机化学中，特定结构的基团用'functional group'表示。
Water is a chemical group.Water is a chemical compound.
混淆了'chemical group'和'chemical compound'。'Chemical group'指分子中的原子团，如羟基、羧基；而'chemical compound'指由不同元素组成的纯物质。
Connections
Confusing words
- functional group
- 官能团 · chemical group 侧重分子中原子集合的整体，而 functional group 特指决定有机化合物化学性质的特定原子团。
- radical
- 基；自由基 · chemical group 指稳定的原子团，而 radical 常指反应活性高、寿命短的自由基或不稳定基团。
Dictionary facts from ECDICT.