Pi Bonds [ENDORSED]
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Re: Pi Bonds
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.
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Re: Pi Bonds
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.
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Re: Pi Bonds
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.
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Re: Pi Bonds
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.
Re: Pi Bonds
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.
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Re: Pi Bonds
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.
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Re: Pi Bonds
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.
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Re: Pi Bonds
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!
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Re: Pi Bonds [ENDORSED]
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
Single bonds - one sigma bond
Double bonds - one sigma bond and one pi bond
Triple bonds - one sigma bond and two pi bonds
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Re: Pi Bonds
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.
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Re: Pi Bonds
Yep! Sigma bonds form first because they're stronger, pi bonds can only be the second and third bonds to form.
Re: Pi Bonds
Yes! There must be a single (pi) bond for the sigma (double, triple) bond to bind to in the first place.
Re: Pi Bonds
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
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Re: Pi Bonds
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.
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Re: Pi Bonds
I believe so because in a double or triple bond, there is always a sigma bond along with the pi bonds
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Re: Pi Bonds
Yes, pi bonds can only exist in double or triple bond (each of which contain sigma bonds as well).
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Re: Pi Bonds
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).
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Re: Pi Bonds
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 :)
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Re: Pi Bonds
Exactly, a pi bond forms at a place where sigma bond has already formed, so it would be 2nd and 3d bond
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Re: Pi Bonds
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.
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Re: Pi Bonds
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.
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Re: Pi Bonds
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.
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Re: Pi Bonds
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
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Re: Pi Bonds
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
Re: Pi Bonds
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.
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Re: Pi Bonds
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.
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