Slides in this set
· The double bond of an alkene consists of two pi-bonds and one
· The pi-bonds on either side of the sigma bond give the alkene areas
of high electron density.…read more
The Br2 molecule comes near the ethene
· As it comes nearer to the region of high
electron density, the shared pair of
electrons in the Br2 bond are repelled to
--- one side.
· This causes one Br atom to become
-- slightly positively charged, and the other
slightly negatively charged.
· The bromine is now an electrophile.
· The Br2 bond will then break (hetrolytic
· The electron pair in the pi-bond is
C C+ attracted to the slightly positive
(+) Br, causing the double bond to
H H break.
· The broken bond joins the carbon to
the (+) Br.
· When the bond breaks, the carbon
ION atom (to which the bromine hasn't
joined) is left with a positive charge.
· You are left with a...
· And an...…read more