Bond Lengths

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Brandon Tao 1K
Posts: 100
Joined: Sat Aug 17, 2019 12:15 am

Bond Lengths

Postby Brandon Tao 1K » Sun Nov 10, 2019 11:33 pm

Why would bond lengths differ between single bonds and multiple bonds?

Sidharth D 1E
Posts: 98
Joined: Sat Aug 24, 2019 12:17 am

Re: Bond Lengths

Postby Sidharth D 1E » Sun Nov 10, 2019 11:35 pm

The additional bonding between the two atoms pulls the nuclei of the two atoms closer to each other, and for that reason double bonds are shorter than single bonds.

Jonathan Gong 2H
Posts: 105
Joined: Sat Jul 20, 2019 12:16 am

Re: Bond Lengths

Postby Jonathan Gong 2H » Sun Nov 10, 2019 11:37 pm

Bond lengths differ from single bonds and other bonds because it depends on the strength of the bond. As you know, a double bond is stronger than a single bond and a triple bond is stronger than a double bond. This means that the attractive forces between a two double bonded elements will be stronger than two single bonded elements (similar for triple and double), which would mean that the atoms/elements would be closer together. Thus, as bond strength increases, bond length decreases since the atoms will be closer together due to increased attractive forces. Hopefully this helps.

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