Concept explainers
Interpretation:
Whether the given compound will have a significant dipole moment is to be determined. If so, the direction of the dipole moment is to be determined.
Concept introduction:
If two rings are with conjugated double bonds and are joined by a double bond, it is possible that one or both may achieve
The resulting charge separation will make the molecule polar. Additionally, the delocalization of the charge due to the aromatic character of the ring(s) will increase the separation between charges, giving the molecule a substantial dipole moment.
The direction of a molecular dipole is from the atom or region with a positive charge toward the atom or region with a negative charge.
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Organic Chemistry: Principles And Mechanisms
- Curved arrows are used to illustrate the flow of electrons. Using the provided resonance structures, draw the curved electron- pushing arrows to show the interconversion between resonance hybrid contributors. Be sure to account for all bond- breaking and bond-making steps. I I I I :O: farrow_forwardFor molecule showed on the rightdraw the structure of 3 different conjugated basesbased on 3 different types of hydrogen which could be deprotonated (CH3, and two different CH2groups). For each structure of conjugate base draw all possible resonance structuresand finally rank all 3 C-H bonds in order of increasing their acidity.arrow_forwardSelect all compounds which are resonance structures of Compound A. :0: Compound A :0: .. O :0: :OHarrow_forward
- Please don't provide handwritten solution ....arrow_forwardSee image belowarrow_forwardDraw both resonance structures of the anion formed by the reaction of the most acidic C-H bond of the compound below with base. a Include all valence lone pairs in your answer. . For structures having different hydrogens of comparable acidity, assume that the reaction occurs at the less-substituted carbon • 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. . O CParrow_forward
- 3) Enols are an important class of molecules in organic chemistry, which are utilized for theirability to form carbon-carbon bonds. We will learn about their unique reactivity much later inthe course. Shown below is an enol on the left, whereas the molecule on the right is classifiedas an allylic alcohol. a) Please explain why the structure on the right IS NOT a resonance structure of the enol on theleft. A short statement or illustration is fine, be sure that your rationale is clear. b) Draw the correct resonance structure that can be produced from the enol on the left. Besure to include arrows to indicate the movement of electrons in the left-hand structure andindicate charges in the resulting structure. c) What is the hybridization of the carbon indicated with the red arrow?arrow_forwardWhat is the major reason why the first of the following compound pairs is more acidic? Answers may be repeated, Vs Choose.. Choose. inductive effect VS v hybridization electronegativity H30* vs *PH4 size mismatch sterics delocalization of charge EN-H vs Choose.arrow_forwardeach of the following compounds exhibits two electrophilic centers. Encircle both centers in each compound.(hint: you will need to draw resonance structures in each case.)arrow_forward
- 6) For each of the following, draw a representation explicitly showing all atoms. Denote the partia charge on each atom (including implied hydrogens) and rank the atoms from most negative to most positive. a) Potassium hydroxide KOH gativ is to have on reactivity? b) Potassium tert-butoxide KOtBu c) Which of these two structures will bear a greater negative charge on the oxygen atom? Explain. d) Considering your answer to part C, which of the two species do you expect to be a stronge base? Explain your reasoning.arrow_forwardThe structure shown below is has a very high pKa because the conjugate base is very unstable. Using the provided resonance structures, draw the curved electron-pushing arrows to show the deprotonation step. Then, draw the curved electron-pushing arrows to show the interconversion between resonance hybrid contributors. Be sure to account for all bond-breaking and bond-making steps. H Select to Add Arrows CH3CH2CH2CH2Li H Select to Edit Arrows H H LIⒸarrow_forwardSolve a and b with detailed explanationarrow_forward
- Organic Chemistry: A Guided InquiryChemistryISBN:9780618974122Author:Andrei StraumanisPublisher:Cengage Learning