The observation that cycloheptatrienone is stable but cyclopentadienone is so reactive and cannot be isolated is to be explained taking into account the polarity of the carbonyl group. Concept introduction: Carbonyl group is polar as oxygen is more electronegative than carbon. According to Huckel’s rule, any specie that is cyclic, planar and has (4n+2) delocalized Ï€ electrons will be aromatic and stable. Thus species with 2, 6, 10, 14 etc. Ï€ electrons will be aromatic and stable. To explain: The observation that cycloheptatrienone is stable but cyclopentadienone is so reactive and cannot be isolated is taking into account the polarity of the carbonyl group.
The observation that cycloheptatrienone is stable but cyclopentadienone is so reactive and cannot be isolated is to be explained taking into account the polarity of the carbonyl group. Concept introduction: Carbonyl group is polar as oxygen is more electronegative than carbon. According to Huckel’s rule, any specie that is cyclic, planar and has (4n+2) delocalized Ï€ electrons will be aromatic and stable. Thus species with 2, 6, 10, 14 etc. Ï€ electrons will be aromatic and stable. To explain: The observation that cycloheptatrienone is stable but cyclopentadienone is so reactive and cannot be isolated is taking into account the polarity of the carbonyl group.
Solution Summary: The author explains the observation that cycloheptatrienone is stable and reactive, taking into account the polarity of the carbonyl group.
Definition Definition Rule that estimates whether a given organic planar ring structure will show an aromatic property. A cyclic ring molecule is said to follow Hückel’s rule if the л-electrons count in a molecule is [4n+2], where n stands for a positive numerical value. It is also called the [4n+2] rule. Hückel's rule, sometimes referred to as the aromaticity rule, is one but not the only criteria to judge a molecule for aromaticity.
Chapter 15.SE, Problem 32AP
Interpretation Introduction
Interpretation:
The observation that cycloheptatrienone is stable but cyclopentadienone is so reactive and cannot be isolated is to be explained taking into account the polarity of the carbonyl group.
Concept introduction:
Carbonyl group is polar as oxygen is more electronegative than carbon. According to Huckel’s rule, any specie that is cyclic, planar and has (4n+2) delocalized Ï€ electrons will be aromatic and stable. Thus species with 2, 6, 10, 14 etc. Ï€ electrons will be aromatic and stable.
To explain:
The observation that cycloheptatrienone is stable but cyclopentadienone is so reactive and cannot be isolated is taking into account the polarity of the carbonyl group.
6. Chlorine dioxide (CIO) is used as a disinfectant in municipal water-treatment plants. It decomposes in
a first-order reaction with a rate constant of 14 s. How long would it take for an initial concentration of
0.06 M to decrease to 0.02 M? [6 pts]
If possible, replace an H atom on the
a carbon of the molecule in the
drawing area with a methyl group
substituent, and replace an H atom
on the ẞ carbon with a hydroxyl
group substituent.
If one of the substituents can't be
added for any reason, just don't add
it. If neither substituent can be
added, check the box under the
drawing area.
en
HO
OH
Curved arrows are used to illustrate the flow of electrons. Use
the reaction conditions provided and follow the curved arrows
to draw the intermediate and product of this
hydrohalogenation reaction.
Include all lone pairs and charges as appropriate.
Br
Select to Draw
51°F
Sunny
esc
F1
HBr
Select to Draw
1,2-hydride
shift
Br
Select to Draw
Q Search
F2
F3
F4
1
2
#
#
3
DII
L
F5
F6
F
tA
$
%
Λ