Double and single bond lengths

Moderators: Chem_Mod, Chem_Admin

Kaylee Clarke 1G
Posts: 103
Joined: Fri Aug 30, 2019 12:15 am

Double and single bond lengths

Postby Kaylee Clarke 1G » Sun Oct 27, 2019 3:20 pm

why is the double bond length shorter than the single bond length? And, if it follows the pattern, is the triple bond shorter than both?

Sarah Blake-2I
Posts: 153
Joined: Fri Aug 30, 2019 12:16 am

Re: Double and single bond lengths

Postby Sarah Blake-2I » Sun Oct 27, 2019 3:24 pm

The double bond is much stronger than a single bond, thus making the double bond have a shorter length than the single bond. And yes triple bonds do have a shorter length than double bonds as triple bonds are even stronger.

rabiasumar2E
Posts: 108
Joined: Thu Jul 11, 2019 12:15 am

Re: Double and single bond lengths

Postby rabiasumar2E » Sun Oct 27, 2019 3:25 pm

A double is shorter than a single bond because it has more electrons and therefore, attracts to the nucleus more, making it stronger. A triple bond is also shorter than a double bond.

HanaAwad_4B
Posts: 45
Joined: Fri Aug 30, 2019 12:18 am

Re: Double and single bond lengths

Postby HanaAwad_4B » Sun Oct 27, 2019 3:28 pm

Double bonds are stronger and shorter because they share more electrons than single bonds, thus there is a stronger pull between the two atoms that are bonded. A good way to think about this is holding on to a ball with one hand vs with two hands. If you are only holding onto the ball with one hand, you have a weaker grip, and less energy is required to take the ball away from you. This is also why double bonds have a higher energy. Triple bonds do follow the trend and are shorter and stronger than both single and double bonds.

805422680
Posts: 103
Joined: Sat Sep 14, 2019 12:16 am

Re: Double and single bond lengths

Postby 805422680 » Sun Oct 27, 2019 3:35 pm

The double bond consists of two types of bonds, the pi bond and the sigma bond. The sigma bond is stronger than the pi bond which results in a shorter bond length. As for a triple bond, there are two pi bonds and one sigma bond, which results in an even shorter bond length.

Nathan Rothschild_2D
Posts: 131
Joined: Fri Aug 02, 2019 12:15 am

Re: Double and single bond lengths

Postby Nathan Rothschild_2D » Sun Oct 27, 2019 7:43 pm

What makes a sigma bond stronger than a pi pond? Is it just shorter or are there any other characteristics that differ?

Aman Sankineni 2L
Posts: 103
Joined: Fri Aug 30, 2019 12:17 am

Re: Double and single bond lengths

Postby Aman Sankineni 2L » Sun Oct 27, 2019 7:54 pm

805422680 wrote:The double bond consists of two types of bonds, the pi bond and the sigma bond. The sigma bond is stronger than the pi bond which results in a shorter bond length. As for a triple bond, there are two pi bonds and one sigma bond, which results in an even shorter bond length.

What is the difference between a sigma bond and a pi bond?


Return to “Ionic & Covalent Bonds”

Who is online

Users browsing this forum: No registered users and 1 guest