Bond Length

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Marsenne Cabral 1A
Posts: 59
Joined: Fri Sep 28, 2018 12:19 am

Bond Length

Postby Marsenne Cabral 1A » Mon Nov 05, 2018 11:55 pm

Can someone help clear up how to find different bond lengths in an atom?

Jake Gordon 1A
Posts: 61
Joined: Fri Sep 28, 2018 12:15 am

Re: Bond Length

Postby Jake Gordon 1A » Tue Nov 06, 2018 1:18 am

To the best of my understanding

Bond length has to be determined experimentally and can vary depending on which atoms are interacting

In terms of decreasing strength it would be triple bond, double bond, single bond

In terms of decreasing length it would be single bond, double bond, triple bond

In resonance structures, a hybrid bond length is observed. If the resonance is between double bonds and single bonds the value of each bond would actually be somewhere between these two bond lengths

Destiny Diaz 4D
Posts: 51
Joined: Fri Sep 28, 2018 12:28 am

Re: Bond Length

Postby Destiny Diaz 4D » Tue Nov 06, 2018 6:21 pm

How would you determine if all the bond lengths in a structure are the same?

Destiny Diaz 4D
Posts: 51
Joined: Fri Sep 28, 2018 12:28 am

Re: Bond Length

Postby Destiny Diaz 4D » Tue Nov 06, 2018 6:24 pm

Destiny Diaz 4D wrote:How would you determine if all the bond lengths in a structure are the same?

or does that depend on the type of bond ?

SydBenedict2H
Posts: 60
Joined: Wed Nov 08, 2017 3:00 am

Re: Bond Length

Postby SydBenedict2H » Tue Nov 06, 2018 7:01 pm

So the shorter the bond,the stronger it also is?

Beatrice Petelo 1F
Posts: 62
Joined: Fri Sep 28, 2018 12:17 am

Re: Bond Length

Postby Beatrice Petelo 1F » Tue Nov 06, 2018 9:31 pm

SydBenedict3H wrote:So the shorter the bond,the stronger it also is?


Yes. Multiple bonds are shorter than single bonds. Adding bonding electrons attract nuclei more and pulls the atoms closer.

Theodore_Herring_1A
Posts: 60
Joined: Fri Sep 28, 2018 12:29 am

Re: Bond Length

Postby Theodore_Herring_1A » Thu Nov 08, 2018 2:53 pm

You do not need to know how to calculate bond lengths unless the covalent radii are given for each atom (then the bond length is the sum of these radii). It is helpful to know that triple bonds are the shortest, then double bonds, then single bonds, and that triple bonds are the strongest, then double bonds, then single bonds.

Aria Soeprono 2F
Posts: 64
Joined: Fri Sep 28, 2018 12:27 am

Re: Bond Length

Postby Aria Soeprono 2F » Thu Nov 08, 2018 3:00 pm

In addition to the patterns of decreasing bond length from single to double to triple bonds, there is also a pattern in which larger atoms have a larger distance between each other, resulting in a longer bond length.

Aiden Atoori 1C
Posts: 67
Joined: Fri Sep 28, 2018 12:24 am

Re: Bond Length

Postby Aiden Atoori 1C » Thu Nov 08, 2018 3:24 pm

The length of the bond is determined by the number of bonded electrons (the bond order). The higher the bond order, the stronger the pull between the two atoms and the shorter the bond length. Generally, the length of the bond between two atoms is approximately the sum of the covalent radii of the two atoms


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