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I'm not an expert teacher or lecturer of chemistry. I was only a student from SMA NEGERI 15 SURABAYA who had been one of the Bronze Medalist Participants of Olimpiade Sains Nasional X (2011) of Chemistry In Manado, North Sulawesi, 11 - 16 September 2011 and graduated in 2012. Now, I'm studying at Universitas Airlangga in Surabaya, Indonesia. I do love chemistry and I would like to help them who had difficulties in studying chemistry. That's why, please understand me if you found some misconcepts in my entries. Suggestions are always necessary in order to develop this blog. And I'm sorry because my English isn't so well.

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Saturday, December 17, 2011

Properties of Polycyclic Aromatic

We know that the Aromatic compound is not only Benzene but also many. For example is: Naphthalene, Anthrasene, and Fenanthrene. Those are the examples of polycyclic aromatic compounds.

Polycyclic compounds have a little bit of differences in properties. The most important is: They are more reactive than benzene. From here, I'll use naphthalene as the example.

1. Bond Length

For benzene, the bond length between the C atoms are the same (about 1,40 Amstrong). But in naphthalene, the bond length is not all the same. See the picture above:

From the pictures above, you can identify the differences between Benzene and Naphthalene.

2. Oxidation Reaction

Still, you have to remember that Naphthalene is not as inert as Benzene. This compound is easier to be oxidized than benzene but the products usually remain defend their aromaticity.

Further Reading. . .
Fessenden & Fessenden, Organic Chemistry.

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