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Triple Bonds
Posted: Sat Nov 17, 2018 3:17 pm
by Manya Kidambi 3I
Why is it that triple bonds have 1 sigma and two pi bonds?
Re: Triple Bonds
Posted: Sat Nov 17, 2018 4:56 pm
by Sara Flynn 2C
A sigma bond is an end to end overlap and so once a sigma bond is formed the molecule is unable to make a second sigma bond because there is no way to orient the molecule that would allow for another end to end overlap. Therefore the second and third bond that are made in a triple bond have to be side to side because of the orientation of the molecule which is what a pi bond is.
Re: Triple Bonds
Posted: Sat Nov 17, 2018 10:22 pm
by Kevin ODonnell 2B
A sigma bond is always the first bond between two atoms, while pi bonds are always the second