Sir Rizwan than
7¥
AHMED
A-2
"
AFZAL
①RGANIC CHEMISTRY
!
DACKIFY
WITH
Learning made fun !
"
?⃝
The Enigma of
STRUCTURE
:
"
Enrzenre
CGH
"
G" September
,
2022
-
Be
↳ 15252ps
Gos
≥
=
Is
2p× Zpy Zpz
/ unhybrid
Es
'
SPZ
+
+
•
ÉÑion
% -2
%bitals
H
% %¥
H
'
•
"
B.
⑨
%¥iÉ¥•qq•
or
0¥
¥***
"
c
E.
¥÷¥☒i¥÷¥¥ ¥*¥ ☒€ ☒☒
⇐⇐
.
%
,
Sp Hybrid Orbitals
Neither Saturated
GHG +Bra
→
Cz HG Mn0u
+
C. He ¥3142
→
E
Organic compounds
real
WHAT ? !
A
A.¥0M#Pic !
.
No change
No change
:
-
a
.
:
ARENE
Co His
g.)
Functional Group
Benzene
Extra
WRONG !
:-
Kekuleka
Khuab
008
. . .
-
.
↳
Delocalization
Benzene
of A-Electrons
.•o•
no
The
Unsaturated
which contain
Hekate 's proposition
9
nor
:-
PROVE IT!
HOW ?
To
THREE PROOFS
Find
Class I Ended
on
out
on
. .
.
the next page !
the note of suspense !
THE ITTREE PROOFS
'
Bond Length
c
-
CIC
*
.tk
2
All
Long
-
Fsh ort
no
Shots
Mong
I 340A
◦
1020A
C- C bond
All C- C bond
Reactions
F- CT
8ᵗʰ Sept 2022
Benzene Edition
1540A
c
C=C
:
→
*
£6 Short
Long
lengths
lengths
are
SAME
I◦4°A
are
of Alkenes and Benzene
B
→
-
É
-
¢
-
Br
9¥
stable
←
*
Br
⊕
B
A
•
Meaner
to
Rob !
RDX
→
1%
3
Benzene Resonance
Resonance
is
the
+
ability
of
Hz
a
Energy (Resonance Stabilization Energy )
compound to
Ni
A-Cpi ) electrons !
=
150°C
-120kt moi
'
-
Cyclohexane
1-21-12
Ni
=
•
150°C
-240kt moi
'
.
Cyclohexane
Hexadiene
1-31-12
Cyclo
its
•
Cyclohexane
Cyclo
more
Ni
-360*5
=
•
moi
-152ktmoi
Cyclohexane
•
No
=
-208kt.no/-i
Delocalization
of
Electrons
Less
'
•
15oz
ene
-
exothermic
→
Reactant
more
STABLE
!
'
BENZENE theypoints
-
-
Each
There
There
-
carbon
are six
are
Electrons
-
Benzene
-
-
-
is
SPZ
Sigma
is
more
bonds
is
which
continuously
-
C
un
G C H
-
continuously
shift
,
De localisation of A-electrons
with
the bond
angle
of the
Alkene
Addition
=
=
R X;R
-
Carbonyls
Electrophilic Substitution Benzene
=
of 120°
reactions rather than
1
Nucleophilic
Pi G)
because of De localisation of A-electrons
Benzene undergoes Electrophilic Substitution
Electrophilic Addition because of stability
Nucleophilic Substitution
or six
c-
Trigonal Planar
=
orbital
delocal is
are same
Electrophilic Addition
-
hybrid P 2-
one
stable than Alkene because of
All C- C bond lengths
Benzene
with
(o) bonds b/w C
Three double
which
hybridise d
:
-
OH
ring