University:
Shippensburg University of Pennsylvania
Course:
CHM 121 | Chemical Bonding
Academic year:

2022
Views:

11

Pages:

5
Author:

GrabCapacity

- Reactivity of SE Reac" based on Complex (Wheland intermediate) Mare stable the readily form more readil be the SE reaction - complex ducing SE reach and more reactive will The - complex (II) well be most stable because the positive charge of complex stabilised by '6' 'so, move electron donating Group quickly form in the faen. more reactive These gecoups are Consequently more reactive of directing least reactive election atracting The because complex to beco become the group and more charge make it less stable mericase the and difficultly form and less reactive will be the reaction. The complex (I) of benzerse having no gecoup is taken sus reference tless which is where stable than I but less stable than (Ⅱ). The compounds more reactive than Benzene (Oxp directing called activating compound while less beactive than benzene called de activating compounds (m-directi Halogen benzene become o p directing but de-activating however, will be made. reactive than m-directing m compounds fo, the overall decreasing Bactivity. order of Benzenoid comprends can be given as Rate of Reaction based on stabito of o complexes The rate of reaction and justification of the Positions 05p or in durin during mono substituted benzene. second subsis In toluene the intermediate highly stable than their other devring op subs because sattached with + I and II are c+ complexes directly These stucturis fecovide overall extra stability and potentiate further reach. During m- subs having charge there is like in and deren't provide main become ve vegligible no I complex and II the stabil stability 4 Therefore trcome ortho para directing doucting not meta competing like toluene aniline is also due to same in aniline O-p directing reason as in toluene but one of the cation intrumediate (I (a)) and (I(a)] are specially extra stable because in these intermediate stoms have complete octate II a intermediates aue all the Thele Ilg and highly stable and highly sate botentiate that aniline more cacte than the reach. It clearly indi become toluene highly activating, Nitrobenzene become geroup Berodiced subs highly m-directug electron attracting attracting becieuse - NO₂ and and -M effed Deving the the staccture (I) and (Ⅱ) unstable due to the attracting No group. So, these stouctures while during are highly peresence of electron attached directly ferodice m-selben stricture sol become de stability. there is m-directing no Isuch