## Sigma/Pi bonds

$sp, sp^{2}, sp^{3}, dsp^{3}, d^{2}sp^{3}$

305113590
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Joined: Fri Sep 28, 2018 12:28 am

### Sigma/Pi bonds

What exactly is the purpose of identifying sigma/pi bonds in molecules?

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Joined: Fri Sep 28, 2018 12:26 am

### Re: Sigma/Pi bonds

A sigma bond (σ bond) is a bond formed by the overlap of orbitals in an end-to-end fashion, with the electron density concentrated between the nuclei of the bonding atoms. A pi bond (π bond) is a bond formed by the overlap of orbitals in a side-by-side fashion with the electron density concentrated above and below the plane of the nuclei of the bonding atoms.

604656370
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### Re: Sigma/Pi bonds

Identifying the bonds allows you to determine bond strengths and lenghts (not the exact number but relative to other molecules/bonds).

905096106
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### Re: Sigma/Pi bonds

Understanding the sigma/pi bond composition of a bond helps you to understand the internal structure of the bond and what it looks like.

Niveda_B_3I
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### Re: Sigma/Pi bonds

Also, it's good to know that:

single bond - one sigma
double bond - one sigma, one pi
triple bond - one sigma, two pi

etc.

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

### Re: Sigma/Pi bonds

Niveda_B_3I wrote:Also, it's good to know that:

single bond - one sigma
double bond - one sigma, one pi
triple bond - one sigma, two pi

etc.

I am not sure if this question makes sense but are the sigma and pi bonds correlated to the type of bond like covalent or ionic bonds?

RandallNeeDis3K
Posts: 34
Joined: Fri Sep 28, 2018 12:25 am

### Re: Sigma/Pi bonds

Akhil Paladugu 3G wrote:A sigma bond (σ bond) is a bond formed by the overlap of orbitals in an end-to-end fashion, with the electron density concentrated between the nuclei of the bonding atoms. A pi bond (π bond) is a bond formed by the overlap of orbitals in a side-by-side fashion with the electron density concentrated above and below the plane of the nuclei of the bonding atoms.

What's the difference between "end-to-end" and "side-to-side"?