Flag Organic Chemistry> hyperconjucation...
question mark

please explain hyperconjucation

moinack shaikh , 13 Years ago
Grade 11
anser 2 Answers
sarthak mitra

Last Activity: 13 Years ago

hyperconjugation is a special type of resonance (no bond resonance)here the H atom carries the +ve charge but there is no bond between C & H.there should be at least 1 H atom in alpha C w.r.t( C=C )                                                                                                                    

                                                     C-C-CH=CH2

                                                     1 2  3

2nd C is alpha C . as there is no H there no hyperconjugation occurs.

 

                                                    C-CH2-CH=CH2    after Hc  C-CH-CH=CH2  

                                                                                              H(+)

                                                    1  2     3

at alpha position (2nd C wrt C=C) hyperconjugable H is present so hyperconjugation occurs. 

no.of hyper conjugable  H present in a compound sometimes helps in detecting the stability of the compound.

Godfrey Classic Prince

Last Activity: 13 Years ago

Dear moinack shaikh,

In organic che,mistry, hyperconjugation is the interaction of the electrons in a sigma bond (usually C–H or C–C) with an adjacent empty (or partially filled) non-bonding p-orbital or antibonding n orbital or filled π orbital, to give an extended molecular orbital that increases the stability of the system. Only electrons in bonds that are β to the positively charged carbon can stabilize a carbocation by hyperconjugation.

 

Hope this helped you immensely...

All the Very Best & Good Luck to you ...

Regards,

AskIITians Expert,

Godfrey Classic Prince

IIT-Madras

Please approve my answer if you liked it by clicking on "Yes" given below...!!Smile

Provide a better Answer & Earn Cool Goodies

star
LIVE ONLINE CLASSES

Prepraring for the competition made easy just by live online class.

tv

Full Live Access

material

Study Material

removal

Live Doubts Solving

assignment

Daily Class Assignments


Ask a Doubt

Get your questions answered by the expert for free