Concept explainers
(a)
Interpretation:
The contribution of resonance structure to resonance hybrid of the given compound has to be investigated.
Concept Introduction:
Resonance Contributor: The appropriate structure with the localized electrons is called a resonance contributor, a resonance structure, or a contributing resonance structure.
Delocalized electrons: The sharing of electrons between two or more atoms known as delocalization of electrons. In order to have delocalized electrons, the system must be planar and have alternative double bonds and single bonds.
Resonance hybrid: the actual structure with delocalized electrons is called a resonance hybrid.
(b)
Interpretation:
The species which have resonance contributors that all contribute equally to the resonance hybrid has to be identified.
Concept Introduction:
Resonance Contributor: The appropriate structure with the localized electrons is called a resonance contributor, a resonance structure, or a contributing resonance structure.
Delocalized electrons: The sharing of electrons between two or more atoms known as delocalization of electrons. In order to have delocalized electrons, the system must be planar and have alternative double bonds and single bonds.
Resonance hybrid: the actual structure with delocalized electrons is called a resonance hybrid.
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Essential Organic Chemistry, Global Edition
- 6. Rank the indicated a-H's from most to least acidic (most acidic= 1). Be sure to explain your rankings for each by drawing significant resonance structures for the conjugate base and commenting on any other factors that contribute to your rankings. H H H H. A B Cmpd Rank Resonance Structures Reasoning A Вarrow_forwardParts A and B A. Circle the molecule with rhe lowest bp. HO- HO, B. Rank from most acidic (1) to least acidic (4) phenol p-nitrophenol p-methylphenol tert-butanolarrow_forwardPhosphorus trichloride (PCl3) can be used to convert carboxylic acids into acid chlorides. The mechanism for the reaction is shown but the curved arrows and the formal charges on the respective atoms have been left out. a. Draw the missing curved arrows for each step. b. Add any missing formal chargesarrow_forward
- Circle the most basic electrons in guanosine. HN H₂N guanosine HO N: HO. OHarrow_forwardWhy is compound la stonger base than compound I? H - H N. II O 1. Because compound II is more sterically hindered. O2. Because compound I is more stable than compound II. O 3. Because the lone pair on compound Iis part of a delocalized pi-system. O4. Because the lone pair on compound II is part of a delocalized pl-system.arrow_forwardFor each molecule below, draw the conjugate acid or conjugate base or both if the molecule hasboth a conjugate acid and a conjugate base (e.g., water).arrow_forward
- H. H H. H-C-0-C* H---0=C Н—С— H. H. H. H. Which of the following resonance structures is the more major contributor, the one on the left or the one on the right? left O rightarrow_forwardIdentify the electrophilic site in the following molecule. B. Ħarrow_forwardQUESTION 1 Which of the following are ways that we can stabilize carbocations? Choose all that apply. O a. Hyperconjugation O b. Resonance/conjugation O C. Inductive effect Od. Zaitzev's rulearrow_forward
- a. Draw resonance contributors for the following species, showing all the lone pairs: 1. CH2N2 2. N2O 3. NO2- b. For each species, indicate the most stable resonance contributor.arrow_forwardCurved arrows are used to illustrate the flow of electrons. Using the provided starting and product structures, draw the curved electron-pushing arrows for the following reaction or mechanistic steps. Be sure to account for all bond-breaking and bond-making steps. :OH: Select to Add Arrows H₂O 3 H₂ H HH H :Br:Ⓒ HH Select to Add Arrows H₂O 17 :Br: H H Please select a drawing or reagent from the question areaarrow_forwardQuestion 5 L Give the reagents. O mCPBA O 1. BH3, 2. H2O2, NaOH O KMnO4, H2O 03 1. Hg(OAc)2, H₂O 2. NaBH4 Moving to another question will save this response. ok.rgl MacBook Airarrow_forward
- Organic Chemistry: A Guided InquiryChemistryISBN:9780618974122Author:Andrei StraumanisPublisher:Cengage Learning