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Grade: 12
        

WHY IS CCL3(-) MORE STABLE THAN CF3(-). ON THE BASIS OF REVERSE HYPERCONJUGATION ANSWER MUST BE OTHERWISEAND EVEN IDUCTIVE EFFECT STABLISES CF3(-) MORE. PLEASE EXPLAIN!!

9 years ago

Answers : (8)

ashish kumar
17 Points
							

Dear Nikhil,

Since Chlorine is more electronagative than Florine, there is more inductive effect on carbon of CCl3(-) than in CF3(-) which stablises its negative charge. The negative charge on the carbon in CCl3(-)  is further stablised in the vacant d-orbital of Chlorine which is not possible in case of CF3(-).

Thank you.

9 years ago
Pallavi Lokanath
33 Points
							Dear Nikhil,

Since FLOURINE is more electronagative than CHLORINE, there is more inductive effect on carbon of CCl3(-) than in CF3(-) which stablises its negative charge. 

The negative charge on the carbon in CCl3(-)  is further stablised in the vacant d-orbital of Chlorine which is not possible in case of CF3(-).

						
9 years ago
Pallavi Lokanath
33 Points
							HI Nikhil,

Since FLOURINE  is more electronagative than CHLORINE , there is more inductive effect on carbon of CCl3(-) than in CF3(-) which stablises its negative charge. The negative charge on the carbon in CCl3(-)  is further stablised in the vacant d-orbital of Chlorine which is not possible in case of CF3(-).

Thank you.


						
9 years ago
Owais Ahmad Kuchy
24 Points
							what the hell are you talking???
who bloody have selected you in iit???
						
4 years ago
Carrie
33 Points
							There should be more -I effect on CF3 rather than CCl3. Isnt it?
						
4 years ago
Kartik Pandoh
24 Points
							Fluorine is more electronegative, however, there is back bonding in CCl3-, which makes it more stable
						
2 years ago
Jatin
19 Points
							If we see according to inductive effect -cf3 should be more stable but due to presence of vacant d-orbital in chlorine there occur p pi d pi bonding .
						
one year ago
Shiddham sharma
19 Points
							The fact that 2p-2p backbonding is  more favourable than 3p-2p backbonding in CF3-and CCl3- makes reduces -I effect of F and thus CCl3- becomes more stable
						
one year ago
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