Sigma and Pi Bond, Triple Bond  [ENDORSED]

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Raj Susarla 3I
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Sigma and Pi Bond, Triple Bond

Postby Raj Susarla 3I » Sat Nov 05, 2016 4:11 am

So I understand why a double bond has one pi bond and one sigma bond. But why does a triple bond have only one sigma bond and 2 pi bonds? Why doesn't it have 2 sigma bonds as well?

Chem_Mod
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Re: Sigma and Pi Bond, Triple Bond  [ENDORSED]

Postby Chem_Mod » Sun Nov 06, 2016 12:41 am

As I discussed in class only one set of orbitals can overlap end to end (sigma bond) between the same two atoms because the other orbitals are pointing in different directions. I have used my three fingers to demonstrate this in class several times. Ask me in class Monday, or at the end of class and we can discuss it.

Remember:
I am available three times a day at the end of every lecture I give to answer student questions.
I answer student questions (virtual office hours) on Chemistry Community every day for 30-40 minutes.
I also ask if there are questions in class.

And I still have 'standard' office hours W and F 4-5pm as stated in the Syllabus and Course Reader.

As well as review sessions before all our exams.

Raj Susarla 3I
Posts: 28
Joined: Wed Sep 21, 2016 2:56 pm

Re: Sigma and Pi Bond, Triple Bond

Postby Raj Susarla 3I » Sun Nov 06, 2016 10:13 pm

Thank you for reminding me of that and clearing my confusion!


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