Home
Class 11
CHEMISTRY
'Stability of carbocations depends upon ...

'Stability of carbocations depends upon the electron releasing inductive effect of groups adjacent to positively charged atom involvement of neighbouring groups in hyperconjugation and resonace''.
The structure of triphenylmethyl cation is given below. This is very stable and some of its salts can be stored for months. Explain the cause of high stability of this cation

Text Solution

Verified by Experts

In triphenylmethyl cation, due to resonance, the positive charge can move at both the `o-`and `p-` position of each benzene ring. This is illustrated below.

Since, there are three benzene rings, hence, there are, in all resonance structure. Thus, triphenylmethyl cation is highly stable due to these nine resonance structure.
Promotional Banner

Topper's Solved these Questions

  • ORGANIC CHEMISTRY : SOME BASIC PRINCIPLES AND TECHNIQUES

    NCERT EXEMPLAR|Exercise Matching the columns|5 Videos
  • ORGANIC CHEMISTRY : SOME BASIC PRINCIPLES AND TECHNIQUES

    NCERT EXEMPLAR|Exercise Assertion and Reason|6 Videos
  • ORGANIC CHEMISTRY : SOME BASIC PRINCIPLES AND TECHNIQUES

    NCERT EXEMPLAR|Exercise Long Answer type question|6 Videos
  • HYDROGEN

    NCERT EXEMPLAR|Exercise LONG ANSWER TYPE QUESTIONS|8 Videos
  • REDOX REACTIONS

    NCERT EXEMPLAR|Exercise LONG ANSWER TYPE QUESTIONS|6 Videos

Similar Questions

Explore conceptually related problems

"Stability of carbocations depends upon the electron releasing inductive effect of groups adjacent to positively charged carbon atom involvement of neighbouring groups in hyperconjugation and resonance." The structure of triphenylmethyl cation is given below. This is very stable and some of its salts can be stored for months. Explain the cause of high stability of this cation.

"Stability of carbocations depends upon the electron releasing inductive effect of groups adjacent to positively charged carbon atom involvement of neighbouring groups in hyperconjugation and resonance." Which of the following ions is more stable ? Use reasonance to explain your answer.

'Stability of carbocations depends upon the electron releasing inductive effect of groups adjacent to positively charged atom involvement of neighbouring groups in hyperconjugation and resonace''. Write structure of various carbocations that can be obtained from 2-methylbutane. Arrange these carbocations in order of increasing stability

'Stability of carbocations depends upon the electron releasing inductive effect of groups adjacent to positively charged atom involvement of neighbouring groups in hyperconjugation and resonace''. Draw the possible resonance structures for CH_(3) - underset(..)overset(..)(O) - overset(+)(C) H_(2) and predict which of the structures is more stable. Give reason for your answer.

Hyperconjugation describes the orbital interactions between the pi -system and the adjacent sigma -bond of the substituent group(s) in organic compounds. Hyperconjugation is called as Baker and Nathan effect. The necessary and sufficient conditions for the hyperconjugation are: (i) Compound should have at least one sp^(2) -hybrid carbon of either alkene, carbocation or alkyl free radical. (ii) alpha -carbon with respect to sp^(2) -hybrid carbon should have at least one hydrogen. Hyperconjugation are of three types: (i) sigma(C-H),pi -conjugation, (ii) sigma(C-H), positive charge conjugation, (iii) sigma(C-H) , odd electron conjugation. The hyperconjugation may be represented as, Number of resonating structures due to hyperconjugation =(n+1) , where n is the numebr of alpha -hydrogen. Greater is the number of such forms, more is the stability of the species under consideration. Stability of alkyl carbocations can be explained by

NCERT EXEMPLAR-ORGANIC CHEMISTRY : SOME BASIC PRINCIPLES AND TECHNIQUES-Short Answer type question
  1. Show the polarisation of carbon-magnesium bond in the following struct...

    Text Solution

    |

  2. Compounds with same molecular formula but differing in their structure...

    Text Solution

    |

  3. Which of the following selected chains is correct to name to given com...

    Text Solution

    |

  4. In DNA and RNA, nitrogen atom is present in the ring system. Can Kjeld...

    Text Solution

    |

  5. If a liquid compound decomposes at its boiling point, which method (s)...

    Text Solution

    |

  6. 'Stability of carbocations depends upon the electron releasing inducti...

    Text Solution

    |

  7. 'Stability of carbocations depends upon the electron releasing inducti...

    Text Solution

    |

  8. 'Stability of carbocations depends upon the electron releasing inducti...

    Text Solution

    |

  9. 'Stability of carbocations depends upon the electron releasing inducti...

    Text Solution

    |

  10. Three students, Manish, Ramesh and Rajini were determining the extra e...

    Text Solution

    |

  11. Name the compounds whose line formula are given below.

    Text Solution

    |

  12. Write structural formulae for compounds named as (a) 1-bromoheptane ...

    Text Solution

    |

  13. Draw the resonance structures of the following compounds. (a) CH(2) ...

    Text Solution

    |

  14. Identify the most stable species in the following set of ions giving r...

    Text Solution

    |

  15. Given three points of differences between inductive effect and resona ...

    Text Solution

    |

  16. Which of the following compounds will not exist as resonance hybrid. G...

    Text Solution

    |

  17. Why does SO(3) act as an electrophile ?

    Text Solution

    |

  18. Resonance structures of propenal are given below. Which of these reson...

    Text Solution

    |

  19. By mistake, an alcohol (boiling point 68^(@)C). Suggest a suitable met...

    Text Solution

    |

  20. Which of the two structures (A) and (B) given below is more stabilised...

    Text Solution

    |