Domanda del libro di testo
For each of the following compounds, draw the important resonance forms. Indicate which structures are major and minor contributors or whether they have the same energy.
(g)
(h)
523
views
Ch.1 - Structure and Bonding
Wade9th EditionOrganic ChemistryISBN: 9780135213728
Non è quello che usi tu?Cambia libro di testoScegli un libro di testo diverso
TOC.tableOfContents
- Ch.1 - Structure and Bonding107
- Ch. 2 - Acids and Bases; Functional Groups115
- Ch.3 - Structure and Stereochemistry of Alkanes100
- Ch.4 - The Study of Chemical Reactions99
- Ch.5 - Stereochemistry93
- Ch.6 - Alkyl Halides; Nucleophilic Substitution118
- Ch. 7 - Structure and Synthesis of Alkenes; Elimination158
- Ch.8 - Reactions of Alkenes171
- Ch.9 - Alkynes91
- Ch.10 - Structure and Synthesis of Alcohols143
- Ch.11 - Reactions of Alcohols104
- Ch. 12 - Infrared Spectroscopy and Mass Spectrometry22
- Ch. 13 - Nuclear Magnetic Resonance Spectroscopy45
- Ch. 14 - Ethers, Epoxides, and Thioethers72
- Ch. 15 - Conjugated Systems, Orbital Symmetry, and Ultraviolet Spectroscopy89
- Ch. 16 - Aromatic Compounds74
- Ch. 17 - Reactions of Aromatic Compounds126
- Ch. 18 - Ketones and Aldehydes193
- Ch. 19 - Amines129
- Ch. 20 - Carboxylic Acids77
- Ch. 21 - Carboxylic Acid Derivatives141
- Ch. 22 - Condensations and Alpha Substitutions of Carbonyl Compounds175
- Ch. 23 - Carbohydrates and Nucleic Acids93
- Ch. 24 - Amino Acids, Peptides, and Proteins54
Capitolo 1, Problema 8e,f
For each of the following compounds, draw the important resonance forms. Indicate which structures are major and minor contributors or whether they have the same energy.
(e) [CH3C(OH)2]+
(f) [CH2CHNH]–
Guida verificata passo dopo passo1
Identify the functional groups and charges in each compound. The first compound is a carbocation with a hydroxyl group, and the second compound is an amine anion.
For the carbocation [CH3C(OH)2]+, recognize that the positive charge is on the carbon atom. Consider resonance structures where the lone pairs on the oxygen atoms can be used to stabilize the positive charge by forming a double bond with the carbon.
Draw the resonance structures for [CH3C(OH)2]+. The major contributor will be the structure where the positive charge is delocalized onto the oxygen, as oxygen is more electronegative and can better stabilize the charge.
For the anion [CH2CHNH]-, identify the lone pair on the nitrogen atom. Consider resonance structures where the lone pair can form a double bond with the adjacent carbon, moving the negative charge to the carbon atom.
Draw the resonance structures for [CH2CHNH]-. The major contributor will be the structure where the negative charge is on the nitrogen, as nitrogen is more electronegative and can better stabilize the charge. Compare the energy levels of the resonance forms to determine major and minor contributors.
Risposta video verificata per un problema simile:
Questa soluzione video è stata consigliata dai nostri tutor come utile per risolvere questo problema.
Durata del video:
8mConcetti chiave
Ecco i concetti essenziali che devi comprendere per rispondere correttamente alla domanda.
Resonance Structures
Resonance structures are different Lewis structures for a molecule that depict the same arrangement of atoms but differ in the placement of electrons. They help illustrate the delocalization of electrons within a molecule, which can stabilize the molecule. The true structure is a hybrid of all resonance forms, with major contributors having lower energy and more stability.
Video consigliato:
03:04
Drawing Resonance Structures
Major and Minor Contributors
In resonance theory, major contributors are resonance structures that are more stable and lower in energy, often having full octets and minimal charge separation. Minor contributors are less stable due to factors like incomplete octets or high charge separation. Identifying these contributors helps predict the molecule's behavior and properties.
Video consigliato:
04:42Ortho, Para major products
Charge Distribution in Resonance
Charge distribution in resonance structures affects their stability. Structures with charges on more electronegative atoms are generally more stable. For example, in [CH3C(OH)2]+, placing positive charge on the carbon is less stable than on oxygen due to oxygen's higher electronegativity. Understanding charge distribution is crucial for determining major and minor resonance contributors.
Video consigliato:
03:34The rules you need for resonance:
Pratica correlata
Domanda del libro di testo
For each of the following compounds, draw the important resonance forms. Indicate which structures are major and minor contributors or whether they have the same energy.
(d) [H2CNO2]–
767
views
Domanda del libro di testo
Draw the important resonance forms for the following molecules and ions.
(d) NO3–
(e) NO2–
(f)
1278
views
Domanda del libro di testo
For each of the following compounds, draw the important resonance forms. Indicate which structures are major and minor contributors or whether they have the same energy.
(c) [H2COCH3]+
757
views
Domanda del libro di testo
Draw the important resonance forms of the following cations and anions:
(c)
(d)
2367
views
Domanda del libro di testo
Use resonance structures to identify the areas of high and low electron density in the following compounds:
(c)
602
views