Askiitians_Expert Yagyadutt
Last Activity: 14 Years ago
Hiiii Prateek !
M-effect is termed as Mesomeric effect ...it 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
regards
Yagya
askiitians_expert