Pi Bonds [ENDORSED]

[Katryn Heine 3A]

Can a Pi bond only exist if a sigma bond exists first? I'm a little confused. Thank you!

[Sristi Palimar 2E]

Yes, I believe that is correct! A single bond would have one sigma bond, a double bond would have one sigma bond and one pi bond, and a triple bond would have one sigma bond and two pi bonds.

[Bryan Cheng 1H]

Yes, pi bonds do not exist alone. Since there are three p orbitals in the x, y, and z axes, one set of p orbitals must overlap end-to-end (creating a sigma bond) for the other orbitals to get close enough to interact side-by-side (creating pi bond(s)). There will always be a sigma bond in the center, then pi bond(s) surrounding it.

[Elaine Steinberg 3H]

Yes! Double bonds have one sigma bond and one pi bond, while triple bonds have one sigma bond and 2 pi bonds. This is because of the orientation of the orbitals in the bound atoms.

[Julia Zahra]

yes i believe so

[Kimia Rategh 2A]

Yes I believe that is correct. Pi bonds are formed when there is either a double or triple bond and since both those bonds are a combination of sigma and pi bonds, you could say that pi bonds can only exist if there is already a sigma bond.

[Niyati 1F]

Yes, pi bonds only exist if there is a sigma bond present as well. They represent higher orbitals and so cannot exist without the lower orbital (sigma) bonds.

[Ally Mosher]

Oh. This makes so much sense. I was confused on this too. Thank you.

[Minoo Bastani 2J]

As the others said, pi bonds cannot exist on their own since they are a result of double or triple bonds. So the first bond in a double bond will be a sigma bond, then all the following bonds (second and third in the case of a triple bond) will be pi bonds.

[Arjun_Anumula_3E]

That is correct, the lower energy hybrid orbitals will make sigma bond(s) first, and the remaining un-hybridized p orbitals can make higher energy pi bonds.

[Elizabeth Kim 2K]

Hi! Yes; pi bonds cannot exist alone. A single bond has one sigma bond, a double bond has one sigma bond and one pi bond, and a triple bond has one sigma bond and two pi bonds. Hope this helps!

[Nayeli Valtierra 2F]

Hi,
Yes that is correct, pi bonds can only exist if there is a sigma bond.

[Sabira Mohammed 3I]

Yes, I think so. You need at least one sigma bond to have a pi bond.

[SuryaDham 3E]

yes, there must be a sigma bond first for a pi bond to exist.

[Chem_Mod]

There will never be a situation where you have a pi bond without a sigma bond.

Single bonds - one sigma bond
Double bonds - one sigma bond and one pi bond
Triple bonds - one sigma bond and two pi bonds

[Victoria Sigala 2A]

Correct! A pi bond only exists if a sigma bond is present.

[Gianna Greco 1G]

Exactly! It is possible to have only a sigma bond and no pi bonds, but it is not possible to have only a pi bond without sigma bonds.

[ElizabethKarlin2E]

Yep! Sigma bonds form first because they're stronger, pi bonds can only be the second and third bonds to form.

[AJackman]

Yes! There must be a single (pi) bond for the sigma (double, triple) bond to bind to in the first place.

[505706331]

yes, sigma bonds are always the first bond to form and pi bonds will be formed after this and the number of pi bonds would depend whether its a double or triple bond

[905701360]

Yes, you are correct!

[Genelle Marcelino-Searles 2G]

Yes, pi bonds can only exist with a sigma bond.

[Madison Rhynhart 3H]

Yes! This is true because the sigma bond will always be the first bond in molecule thus a single bond is a sigma bond and then once you have a sigma bond you can make a double bond which would include one pi and one sigma bond.

[Morgan Micallef 1A]

So pi bonds only form when there are double and triple bonds forming?

[Mahima Manoj 1F]

I believe so because in a double or triple bond, there is always a sigma bond along with the pi bonds

[Ryan Lafferty 1L]

Yes, pi bonds can only exist in double or triple bond (each of which contain sigma bonds as well).

[Trisha Badjatia 2L]

Yes, because pi bonds are made by the overlap between leftover p-orbitals. Sigma bonds are in every bond, including single bonds, while pi bonds are only in multiple bonds (like double or triple bonds).

[Shannon Clark 1F]

Yes! All single bonds are sigma bonds, double bonds are one sigma bond and one pi bond, and triple bonds are one sigma bond and two pi bonds! Sigma bonds always comes first, and then the addition of pi bonds occurs after :)

[Nataly Antonova 1B]

Exactly, a pi bond forms at a place where sigma bond has already formed, so it would be 2nd and 3d bond

[Vashe Sundar 3H]

Yep! Pi bonds exist on top of a sigma bond. For example, a double bond between C--C both has a sigma and pi bond.

[Madison Yee 2B]

Yes, pi bonds must exist in addition to sigma bonds. Sigma bonds are often represented by single bonds. Double bonds consist of a sigma bond and a pi bond.

[Mario Prado 1K]

Hello,

Yes a pi bond can only exist if a sigma bond is already present.

Hope this helps.

[Madeline_Miller]

Yes! A sigma bond needs to be there for a pi bond to be present.

[Polo Morales 3C]

Yes, pi bonds form only after sigma bonds are formed between two atoms. The second bond in a double bond and third in a triple bond are pi bonds, while the first bond is a sigma bond.

[Palig Kechichian 3F]

Yes! The first bond is always a sigma bond. If you have a double bond, then you would have a sigma bond and a PI bond

[Divya Mehta 2K]

Yes, pi bonds can only exist when there is a double of triple bond. If there is a double or triple bond, one bond is always a sigma and the remainder are pi bonds

[505807269]

Yes, there is a sigma bond first. Pi bonds are generated when there is a double or triple bond, and because both of those bonds are a combination of sigma and pi bonds, pi bonds can only exist if there is already a sigma bond.

[Zoe Apple 1F]

Yes, pi bonds exist with a sigma bond. They occur once in a double bond with one sigma bond and twice in a triple bond with one sigma bond.

[JafarriNocentelli 1G]

Yes this is correct because pi bonds can only exist with a sigma bond present