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.
Choose the option that is decreasing from biggest to smallest.
Group of answer choices:
100 m, 10000 mm, 100 cm, 100000 um, 10000000 nm
10000000 nm, 100000 um, 100 cm, 10000 mm, 100 m
10000000 nm, 100000 um, 10000 mm, 100 cm, 100 m
100 m, 100 cm, 10000 mm, 100000 um, 10000000 nm
Q1. (a) Draw equations for homolytic and heterolytic cleavages of the N-H bond in NH3. Use
curved arrows to show the electron movement.
(b) Draw equations for homolytic and heterolytic cleavages of the N-H bond in NH4*. Use
curved arrows to show the electron movement.
Which is NOT the typical size of a bacteria?
1000 nm
0.001 mm
0.01 mm
1 um