A reasonable Lewis structure for H2NCOCH3 is
below. Predict whether it would have resonance. If it does, draw all of the
reasonable resonance structures and the resonance hybrid.
The structure has a double bond and an adjacent
atom with a lone pair, so it could have resonance. The possible resonance
structures are below.
The first structure has the most common bonding pattern for
all of its atoms, so it is a reasonable Lewis structure. Although the less
common bonding patterns for the oxygen and nitrogen atoms in the second
structure suggest that it is less stable than the first structure, we still
consider it to be a reasonable resonance structure.
Using the two resonance structures above as a
guide, we get the following resonance hybrid.
Click here to see a molecular model
here to see Exercise #1.
here to see Example #2.
here to see Exercise #2.
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