同核和异核芳香化合物之间的差异

Thekey differencebetween homonuclear and heteronuclear aromatic compounds is that thehomonuclear aromatic compounds contain atoms of the same chemical elements in the ring structurewhereas the heteronuclear aromatic compounds contain atoms of different chemical elements in the ring structure.

Homonuclear and heteronuclear aromatic compounds are organic compounds containing ring structures. And, these ring structures contain either identical atoms or different atoms. Therefore, they have different chemical and physical properties depending on the type of atoms in the ring structures.

内容

1.Overview and Key Difference
2.What are Homonuclear Aromatic Compounds
3.What are Heteronuclear Aromatic Compounds
4.Side by Side Comparison – Homonuclear vs Heteronuclear Aromatic Compounds in Tabular Form
5.概括

What are Homonuclear Aromatic Compounds?

同核芳香化合物是由相同化学元件组成的物质通过covalent bondsto form a ring structure. Most homonuclear aromatic compounds contain carbon atoms that make up the ring. There are either single or double bonds between these atoms, and there can be hydrogen or other atoms (or group of atoms) attached to these carbon atoms as pendant groups.

Benzene is a common homonuclear aromatic compound which has six carbon atoms in a ring attached through alternatingsingle and double bondsbetween them. In addition, these compounds fulfil the requirements of an aromatic structure; they contain a conjugated pi-electron system, planar, electron delocalization, alternating single and double bonds, etc.

What are Heteronuclear Aromatic Compounds?

异核芳香化合物是由通过共价键相互键合的不同化学元素的原子组成的物质，形成环结构。至于需要作为芳香化合物的要求，异核芳香化合物包含Pi-Electron系统，交替的单键和双键，Dellocalized电子系统等。

Generally, these compounds contain mainly carbon atoms along with other atoms such as nitrogen, sulfur, and oxygen. For example, pyridine has a structure that is similar to benzene, but there is a nitrogen atom instead of a carbon atom in the ring structure. Similarly, furan has four carbon atoms and an oxygen atom, making up its ring structure.

同核和异核芳香化合物有什么区别？

Homonuclear and heteronuclear aromatic compounds are organic compounds containing ring structures. The key difference between homonuclear and heteronuclear aromatic compounds is that the homonuclear aromatic compounds are composed of atoms of the same chemical element bonded to each other via covalent bonds to form a ring structure whereas the heteronuclear aromatic compounds contain atoms of different chemical elements in the ring structure.

Moreover, the homonuclear aromatic compounds contain nonpolar chemical bonds while the heteronuclear aromatic compounds contain both polar and nonpolar chemical bonds. Benzene is an example of a homonuclear aromatic compound while pyridine and furan are examples of heteronuclear aromatic compounds.

下表总结了同核和异核芳香族化合物之间的差异。

概括– Homonuclear vs Heteronuclear Aromatic Compounds

Homonuclear and heteronuclear aromatic compounds are organic compounds containing ring structures. These ring structures contain either identical atoms or different atoms. In summary, the key difference between homonuclear and heteronuclear aromatic compounds is that the homonuclear aromatic compounds contain atoms of the same chemical elements in the ring structure whereas the heteronuclear aromatic compounds contain atoms of different chemical elements in the ring structure.

Reference:

1. “Heterocyclic Aromatic Compounds”. Cliffnotes.com, 2020,Available here.
2. Helmenstine，Anne Marie。“什么是多核芳烃？”Thinkco，2020年2月11日，Available here.

Image Courtesy:

1. “Benzene Structural diagram” By Vladsinger – Own work (Public Domain) viaCommons Wikimedia
2. “Furan-2D-full” By Jynto – Own work (Public Domain) viaCommons Wikimedia