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  • For the C6H6 Lewis structure there are three ways we can draw it. The most common is Benzene.

  • I'll explain how to do that and then show the other two ways that we can draw the C6H6

  • Lewis structure.

  • So we have a total of 30 valence electrons to work with. For Benzene we're going to put

  • the carbons in a ring structure. Then we'll put the hydrogens outside of the carbons.

  • We have our skeleton structure, so let's put two electrons between each of the atoms to

  • form chemical bonds. So we'll put them like this and the go around and do that for all

  • of the atoms.

  • So we have six valence electrons so we'll put, I don't know, two here, two here and

  • then two here. But you can see right away we have octets on these carbon atoms, but

  • these other three only have three bonds, so they only have six valence electrons and they

  • don't have a full outer shell. So we're going to need to form some double bonds. It looks

  • like we'll need three double bonds.

  • So let's take these two valence electrons and form a double bond between these two carbons.

  • So now these two carbons here, they have eight valence electrons in their outer shell.

  • We can form another double bond but we can't put it right next to the one we just formed

  • because then that carbon right here would have more than eight valence electrons. So

  • we'll need to alternate our double bonds.

  • Let's take these two right here and form a double bond here. And finally let's take these

  • two and form a double bond right here.

  • So now we're still using 30 valence electrons but each of the carbons has eight valence

  • electrons so its octet is satisfied.

  • So this is a viable Lewis structure for C6H6, in fact it's called Benzene and it's quite

  • common in organic chemistry.

  • Because Benzene is commonly used in organic chemistry there are a number of other ways

  • we can draw it. These structures are intended to make it easier to draw the Benzene Lewis

  • structure.

  • You could also draw the C6H6 Lewis structure like this ... or ... like this. There are

  • probably even some other ways that I haven't thought of.

  • So that's the Lewis structure for C6H6, probably the most common would be the Benzene, that's

  • probably what you would be expected to know. But there are other isomers, or ways to draw

  • the C6H6 Lewis structure.

  • This is Dr. B., and thanks for watching.

For the C6H6 Lewis structure there are three ways we can draw it. The most common is Benzene.


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B1 中級 美國腔

C6H6的路易斯結構。如何畫出C6H6(苯)的路易斯結構? (C6H6 Lewis Structure: How to Draw the Lewis Structure for C6H6 (Benzene))

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    Wayne Lin 發佈於 2021 年 01 月 14 日