wht is +m effect???

wht is +m effect???



1 Answers

Askiitians_Expert Yagyadutt
askIITians Faculty 74 Points
13 years ago

Hiiii Prateek ! 


M-effect is termed as Mesomeric effect is also alternatively termed as resonance effect ...It is a effect due to which a group attached with a resonating structure perfoms an electron withdrawing or releaising phenomenon...


And thus due to elctron withdrawing and realeasing this M effect is divided in two groups....

~ +m effect : Means the substituent will have electron releasing property

~-m effect : Means ...the substituent will have electron withdrawing property ...


Example : +NO2 has    + m effect...means...If on any compound it is attached as a substituent....then due to this NO2+ ..electron density in that compound will increase...because it has electron releasing property...


I hope it is clear





Think You Can Provide A Better Answer ?


Get your questions answered by the expert for free