8. If a resonance structure must have a negative formal charge, that charge is most stable on an electronegative atom. Draw all relevant resonance structures of the molecule below with curved arrows only using pattern 1. Circle the most stable structure(s). Explain the choice of most stable structure with 1-3 complete sentences.

8. If a resonance structure must have a negative formal charge, that charge is most stable on an electronegative atom. Draw all relevant resonance structures of the molecule below with curved arrows only using pattern 1. Circle the most stable structure(s). Explain the choice of most stable structure with 1-3 complete sentences.

Organic Chemistry: A Guided Inquiry

2nd Edition

ISBN:9780618974122

Author:Andrei Straumanis

Publisher:Andrei Straumanis

Chapter5: Resonance

Section: Chapter Questions

Problem 6E

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a model of each molecule shown above: Is the molecule in the left box the same moleculeas the molecule in the right box? Use your models to answer the question, and recall that...
4. Circle the following pairs of structures that do not constitute resonance structures. For the proper resonance pairs, draw curved arrows to convert the first structure to the second. Draw in all lone pairs of electrons. H3C-CH3 „CH3 HgC-N' a) b) H2C=C=CH2 H3C-CECH FCH2 d) H3C' CH2 H H3C
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3. For each molecule below, draw two additional resonance reasonable structures. Be show sure to show how the resonance structures are related using formal arrow pushing. Rank the resonance structures from most stable to least stable (if they are the same stability rank them the same). Finally, draw the hybrid. ΝΗ G yg
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Assign formal charges to the atoms in these three structures (only necessary for atoms with nonzero formal charge). Do not add or delete bonds or electrons, except where indicated. Assume that all unshared valence electrons are shown but overall charges are not. If you need to revert the drawing palette to the original state, select the More menu, then select Reset Drawing. Add formal charges to CH3. Select Draw Templates More /// די H | H -H Erase Add formal charges to CH3. Note the presence of the lone pair. Select Draw Templates More C H H H | H Erase
First, add curved arrow(s) to show the resonance using the following pattern: a pi bond between two atoms of differing electronegativity. Modify the second structure given to draw the new resonance structure. Include relevant formal charges in your structure. Use the + and - tools to add/remove charges to an atom, and use the single bond tool to add/remove double bonds. H3C CH₂ H3C Edit Drawing CH+
9. The two molecules shown below are structurally very similar. Draw all resonance structure for each species with curved arrows and circle which is molecule (A or B) is more stable because it has more resonance structures. Only use patterns 2 and 3. A B
x-xo B Draw molecule A. On that drawing include the lone pairs and the curved arrows that would produce resonance structure B.
a Draw the additional resonance structure(s) of the structure below? :CH₂-C=N: • Include all valence lone pairs in your answer. • Draw one structure per sketcher. Add additional sketchers using the drop-down menu in the bottom right corner. • Separate resonance structures using the → symbol from the drop-down menu. Ne **** H₂C=C=N: ChemDoodleⓇ On [F remove