carbene intermediate stability ........

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Why is :CF2(difluorocarbene) more stable than :CCl2 and :CH2 ??

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4 Answers

katoch ·2010-02-26 08:10:58

FIRST OF ALL :CF_₂ AND :CCl_₂ are stable than CH2 as resonance effect . on the other hand f is more electronegative than chlorine. and chlorine has large size.

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Avik ·2010-02-26 08:14:26

Chances of Backbonding seems 2b a reasonable reason. [4]

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Vivek Roy ·2010-02-27 23:29:56

cf2, ccl2 and ch2.......

Because of the large size difference between chlorine and carbon, the 2p and 3d orbitals are of greatly different energies. Thus resonance is less prominent than inductive
carbene is an electron deficient species so -I effect will destabilise it...