Why is Lewis Structure A Better for Diazomethane?

In summary, the conversation is about determining the acceptable Lewis structure for Diazomethane. The individual had narrowed it down to two possible results but was unsure why one was more acceptable than the other. The answer is A, the first choice, which reflects the reactivity of the compound better and avoids repulsion of two negative charges.
  • #1
Puchinita5
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Homework Statement



I was taking a practice exam, and it asked for the "acceptable lewis structure for Diazomethane"

I had narrowed it down to two possible results but can't for the life of me figure out why one is more acceptable than the other. I attached a picture of the two choices.

I know the answer is A, the first choice. But I don't know why!


Homework Equations





The Attempt at a Solution

 

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  • #2
anyone? :-/
 
  • #3
I think it's as simple as the form with the neutral carbon reflecting better the reactivity of the compound, as in e.g formation of the methyl ester with acids. Otherwise you may get repulsion of two negative charges which is unfavourable.
 

1. Why is Lewis Structure A better for Diazomethane than other structures?

The Lewis Structure A for Diazomethane is considered the most stable and accurate representation of the molecule. It follows the octet rule and satisfies the formal charge requirements of all atoms, making it the most preferred structure.

2. How does Lewis Structure A accurately represent the bonding in Diazomethane?

Lewis Structure A shows the correct number and type of bonds between all atoms in Diazomethane. It also correctly depicts the double bond between the carbon and nitrogen atoms, which is a characteristic of this molecule.

3. What is the significance of the lone pair electrons in Lewis Structure A for Diazomethane?

The lone pair electrons in Lewis Structure A are essential for maintaining the stability of the molecule. They also help in fulfilling the octet rule for all atoms, thus making the structure more accurate.

4. Can other Lewis Structures be drawn for Diazomethane?

Yes, other Lewis Structures can be drawn for Diazomethane, but they may not accurately represent the bonding and formal charges in the molecule. Lewis Structure A is the most preferred and accepted representation of Diazomethane.

5. How does Lewis Structure A help in predicting the reactivity of Diazomethane?

Lewis Structure A provides insight into the electronic and structural properties of Diazomethane, which can help in predicting its reactivity. It also helps in understanding the stability of the molecule and its ability to undergo reactions with other compounds.

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