Question

Which parts of acetylsalicylic acid are rigid??

Answer 1

The rigid parts of acetylsalicylic acid are $\boxed{{\text{ring structure}}}$ and $\boxed{{\text{C = O}}}$.

Further explanation:

$\pi$bonds are the bonds formed by the sideways overlap of two p orbitals. Rotation essentially means that parallel orientation would have to be destroyed. Thus the breaking of such bonds requires a considerable amount of energy hence they do not rotate freely.

Acetylsalicylic acid is commonly referred as aspirin. Its IUPAC name is ${\text{2 - acetylbenzoic acid}}$.

In terms of rigidity, the bonds that are easily rotated without any restriction of breakage of bonds are not regarded as rigid while the bonds that do not rotate due to restricted rotation due to pi-electron cloud are not so rigid.

In acetyl-salicylic acid, there are two kinds of ${\mathbf{\pi }}$bonds namely the carbon-carbon within the aromatic ring and carbon-oxygen  bond. Hence these are the only two rigid $\pi$bonds that can only be rotated if they are broken. The carbon-oxygen  $\pi$bond and the carbon-carbon  bond in the ring are evident in the image attached.

Therefore the rigid parts of acetylsalicylic acid include ring structure and ${\mathbf{C = O}}$.

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Answer details:

Grade: High School

Subject: Chemistry

Chapter: Chemical bonds

Keywords: Acetylsalicylic acid, sideways overlap, p orbitals, restricted rotation, aromatic ring,carbon-oxygen bond, and carbon-carbon bond.

Answer 2

Answer:

Acetylsalicylic acid is also known as Aspirin.The chemical formulaTof this compound is C9H8O4. The parts of acetylsalicylic acid which makes it more rigid is as a result of the 6-membered ring which has alternating alkane and alkene bonds in its structure.Acetylsalicylic acid also has 21 sigma bonds and a heterocyclic ring thereby making it more rigid and less reactive with other elements and compounds.

Aspirin is used in the treatment of ailments such as pain, migraines and headaches encountered by individuals and for surgical procedures to cure serious inflammations and pain encountered. It has proven with time to be very effective and safe for use.

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