Pi bonding

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salvadorramos3k
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Joined: Wed Sep 18, 2019 12:18 am

Pi bonding

Postby salvadorramos3k » Thu Nov 21, 2019 3:13 pm

Why is is important that pi bonding does not allow rotation within the molecules?

Kavya Immadisetty 2B
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Re: Pi bonding

Postby Kavya Immadisetty 2B » Thu Nov 21, 2019 3:23 pm

Because in biology, the form of a molecule is vital for its function. The fact that pi bonds don't allow for rotation locks the molecule into a certain shape at double and triple bonds which allow molecules to do its function. Also, the fact that pi bonds don't allow for rotation leads to cis and trans isomers.

salvadorramos3k
Posts: 72
Joined: Wed Sep 18, 2019 12:18 am

Re: Pi bonding

Postby salvadorramos3k » Thu Nov 21, 2019 3:42 pm

Kavya Immadi 3D wrote:Because in biology, the form of a molecule is vital for its function. The fact that pi bonds don't allow for rotation locks the molecule into a certain shape at double and triple bonds which allow molecules to do its function. Also, the fact that pi bonds don't allow for rotation leads to cis and trans isomers.

Can you please explain what cis and trans isomers are? I didn't understand when Lavelle explained. Thank youuuu!!! :)

Katie Kyan 2K
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Re: Pi bonding

Postby Katie Kyan 2K » Thu Nov 21, 2019 4:02 pm

salvadorramos3k wrote:
Kavya Immadi 3D wrote:Because in biology, the form of a molecule is vital for its function. The fact that pi bonds don't allow for rotation locks the molecule into a certain shape at double and triple bonds which allow molecules to do its function. Also, the fact that pi bonds don't allow for rotation leads to cis and trans isomers.

Can you please explain what cis and trans isomers are? I didn't understand when Lavelle explained. Thank youuuu!!! :)


A cis isomer is polar whereas a trans isomer is nonpolar. In a cis isomer, the two hydrogen atoms are on the same side and the two ethyl groups are on the other side. In a trans isomer, however, the two hydrogens are on opposite sides.


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