Show transcribed image text. Expert Answer. Who are the experts? Experts are tested by Chegg as specialists in their subject area. We review their content and use your feedback to keep the quality high. 100% (15 ratings) Transcribed image text: Which resonance structure contributes the most to the overall picture of this molecule? Previous ...
Principle 1. Atoms, in general, “don’t like” charges, so having no charge is better: Sometimes, it is impossible to avoid charges, so if both resonance structures are charged, then the octet rule needs to be considered. Principle 2. The resonance structure with a …
Mar 30, 2018 · The resonance form which is likely to contribute most to the correct structure of is: Structure for showing one lone-pair of electrons on the terminal nitrogen atom, a triple bond between the two nitrogen atoms, a single bond between nitrogen and oxygen, and three lone-pairs of electrons on the terminal oxygen atom.
Question 4.1a: Draw all of the valid resonance structures for each molecule below and use arrows to show the movement of electrons. 4 5 Question 4.1b : Draw a picture that depicts the orbitals involved in the resonance and formal charges, then in a short paragraph describe how a pi bond next to a carbocation is delocalized. 6
What is important as well, is that not all the resonance structures are equally stable. In fact, the most stable resonance form is the resonance hybrid since it delocalizes the electron density over a greater number of atoms:
The stability trends for a positive charge are, as expected, opposite to the ones for the negative charge. The positive charge is a center of electron deficiency, therefore to stabilize it, we need electron-donating groups.