Snap & Solve (Chemistry)

Chapter 14 Haloalkanes

 
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Chapter 14 Haloalkanes
by 1M2S03a PAVITHREN A/L DEVAKRISHNAN PST - Modul II - Thursday, 15 March 2018, 9:55 AM
 

Can someone explain the difference between SN1 dan SN2 reaction? 

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Re: Chapter 14 Haloalkanes
by 1M1S09a NAZURAH BINTI HAMZAH PST - Modul I - Saturday, 17 March 2018, 8:47 PM
 

SN1 reaction 

two step reaction, first order reaction, Carbocation intermediate is formed, rate is dependent on stability of Carbocation, rate of reaction also depends on stability of cation and anion, weak nucleophile performs sn1 reaction, rate of reaction is independent of concentration and strength of nucleophile, product formed will be both R- and S- (mirror image)

SN2 reaction

Single step reaction, second order reaction, rate is dependent on concentration and strength of nucleophile, transition state is formed (sp2 hybridised, planar structure), no Carbocation intermediate formation, rate of reaction is inversely proportional to bulkiness of groups attached to C atom, strong nucleophile performs sn2 reactions. Nucleophile attacks substrate directly from backside, Walden inversion occurs