Part A Which carbocation is more stable? O CH2CH = CH2 %3D CH3 CH = CH %3D Submit Request Answer Part B Which carbocation is more stable? H2C = CH O HC = C
Reactive Intermediates
In chemistry, reactive intermediates are termed as short-lived, highly reactive atoms with high energy. They rapidly transform into stable particles during a chemical reaction. In specific cases, by means of matrix isolation and at low-temperature reactive intermediates can be isolated.
Hydride Shift
A hydride shift is a rearrangement of a hydrogen atom in a carbocation that occurs to make the molecule more stable. In organic chemistry, rearrangement of the carbocation is very easily seen. This rearrangement can be because of the movement of a carbocation to attain stability in the compound. Such structural reorganization movement is called a shift within molecules. After the shifting of carbocation over the different carbon then they form structural isomers of the previous existing molecule.
Vinylic Carbocation
A carbocation where the positive charge is on the alkene carbon is known as the vinyl carbocation or vinyl cation. The empirical formula for vinyl cation is C2H3+. In the vinyl carbocation, the positive charge is on the carbon atom with the double bond therefore it is sp hybridized. It is known to be a part of various reactions, for example, electrophilic addition of alkynes and solvolysis as well. It plays the role of a reactive intermediate in these reactions.
Cycloheptatrienyl Cation
It is an aromatic carbocation having a general formula, [C7 H7]+. It is also known as the aromatic tropylium ion. Its name is derived from the molecule tropine, which is a seven membered carbon atom ring. Cycloheptatriene or tropylidene was first synthesized from tropine.
Stability of Vinyl Carbocation
Carbocations are positively charged carbon atoms. It is also known as a carbonium ion.
![**Part A**
**Which carbocation is more stable?**
- ○ \( \text{CH}_2\text{CH}^+ = \text{CH}_2 \)
- ○ \( \text{CH}_3\text{CH}^+ = \text{CH} \)
[Submit] [Request Answer]
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**Part B**
**Which carbocation is more stable?**
- ○ \( \text{H}_2\text{C} = \text{C}^+\text{H} \)
- ○ \( \text{HC} \equiv \text{C}^+ \)
[Submit] [Request Answer]](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F19199881-9bf5-44ea-818c-8b0b3c78e2f9%2Fd70ca31f-8b64-49ef-aed5-50d600d9bdd2%2Fgvzecr1h_processed.jpeg&w=3840&q=75)
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