All Related Questions of Resonance Structures

Q: The “Chemistry in Focus” segment Broccoli—Miracle Food?

The “Chemistry in Focus” segment Broccoli—Miracle Food? discusses the health benefits of eating broccoli and gives a Lewis structure for sulforaphane, a chemical in broccoli. Draw possible resonance s...

Q: The “Chemistry in Focus” segment Hiding Carbon Dioxide discusses attempts

The “Chemistry in Focus” segment Hiding Carbon Dioxide discusses attempts at sequestering (storing) underground CO2 produced at power plants so as to diminish the greenhouse effect. Draw all resonance...

Q: Draw resonance structures for each of the following radicals: /

Draw resonance structures for each of the following radicals:

Q: 5-Methylcyclopentadiene undergoes homolytic bond cleavage of a C−H

5-Methylcyclopentadiene undergoes homolytic bond cleavage of a C−H bond to form a radical that exhibits five resonance structures. Determine which hydrogen atom is abstracted and dra...

Q: Stable radicals have been used as biosensors to monitor cellular oxygen levels

Stable radicals have been used as biosensors to monitor cellular oxygen levels. One of the first stable radicals to be reported was the triphenylmethyl radical, shown at right. More recently, similar...

Q: Draw all resonance structures for each of the following radicals:

Draw all resonance structures for each of the following radicals:

Q: Draw all resonance structures of the radical produced when a hydrogen atom

Draw all resonance structures of the radical produced when a hydrogen atom is abstracted from the OH group in BHT:

Q: In Chapter 2, we saw several patterns for drawing resonance structures

In Chapter 2, we saw several patterns for drawing resonance structures of ions or uncharged compounds. There are also several patterns for drawing resonance structures of radicals, although we have on...

Q: Draw resonance structures for each of the following anions: /

Draw resonance structures for each of the following anions:

Q: Compare the wavenumber of absorption for the following two C=C

Compare the wavenumber of absorption for the following two C=C bonds. Use resonance structures to explain why the C=C bond in the conjugated compound produces a signal at lower wavenumber.

Q: Treatment of 1,3,6-cyclononatriene (compound 1

Treatment of 1,3,6-cyclononatriene (compound 1), or its dimethyl derivative (compound 2), with potassium amide (KNH2) in liquid ammonia results in the formation of anion 1a or 2a, respectively: a. Dr...

Q: Halogenated derivatives of toluene will undergo hydrolysis via an SN1 process:

Halogenated derivatives of toluene will undergo hydrolysis via an SN1 process: The rate of hydrolysis is dependent on two main factors: 1. the stability of the leaving group, and 2. the stability o...

Q: The cation 1 has been shown to lose a proton (H

The cation 1 has been shown to lose a proton (H+) to produce a compound represented by resonance structures 2a, 2b, and 2c. a. Draw the curved arrows needed to convert resonance structure 2a into res...

Q: Draw resonance structures for each of the following compounds: /

Draw resonance structures for each of the following compounds:

Q: The dragmacidin class of natural products has been isolated from various marine

The dragmacidin class of natural products has been isolated from various marine sponges. They have been shown to have many interesting biological properties, including anti-viral, anti-fungal, and ant...

Q: Draw significant resonance structures for the following compound: /

Draw significant resonance structures for the following compound:

Q: Draw all significant resonance structures for each of the following:

Draw all significant resonance structures for each of the following:

Q: Draw resonance structures for each of the following: /

Draw resonance structures for each of the following:

Q: Determine the relationship between the two structures below. Are they resonance

Determine the relationship between the two structures below. Are they resonance structures or are they constitutional isomers?

Q: Consider the structure of ozone: / Ozone is

Consider the structure of ozone: Ozone is formed in the upper atmosphere, where it absorbs short wavelength UV radiation emitted by the sun, thereby protecting us from harmful radiation. Draw all sig...

Q: Draw all significant resonance structures for each of the following compounds:

Draw all significant resonance structures for each of the following compounds:

Q: Use resonance structures to help you identify all sites of low electron

Use resonance structures to help you identify all sites of low electron density (δ+) in the following compound:

Q: Use resonance structures to help you identify all sites of high electron

Use resonance structures to help you identify all sites of high electron density (δ−) in the following compound:

Q: Cycloserineis anantibiotic isolated from the microbe Streptomyces orchidaceous. It is used

Cycloserineis anantibiotic isolated from the microbe Streptomyces orchidaceous. It is used in conjunction with other drugs for the treatment of tuberculosis. a. What is the molecular formula of this...

Q: Progesterone is a female hormone that plays a critical role in the

Progesterone is a female hormone that plays a critical role in the menstrual cycle by preparing the lining of the uterus for implantation of an egg. During W. S. Johnson’s biomimetic...

Q: In the following compound, two protons are clearly identified. Determine

In the following compound, two protons are clearly identified. Determine which of the two is more acidic. After comparing the conjugate bases, you should get stuck on the following question: Is it mor...

Q: The Nazarov cyclization is a versatile method for making five-membered

The Nazarov cyclization is a versatile method for making five-membered rings, a common feature in many natural products. This process has been used successfully in the preparation of many complex stru...

Q: Consider the structure of cyclopentadiene and then answer the following questions:

Consider the structure of cyclopentadiene and then answer the following questions: a. How many sp3 -hybridized carbon atoms are present in the structure of cyclopentadiene? b. Identify the most acid...

Q: Asteltoxin, isolated from the cultures of Aspergillus stellatus, exhibits a

Asteltoxin, isolated from the cultures of Aspergillus stellatus, exhibits a potent inhibitory effect on the activity of E. coli BF1-ATPase. During S. L. Schreiber’s synthesis of aste...

Q: Triphenylmethane dyes are among the first synthetic dyes developed for commercial use

Triphenylmethane dyes are among the first synthetic dyes developed for commercial use. A comparison of the structures of these compounds reveals that even small differences in structure can lead to la...

Q: In Chapter 3, we will explore the factors that render compounds

In Chapter 3, we will explore the factors that render compounds acidic or basic. Tropolone (1) is a compound that is both fairly acidic and fairly basic. It is acidic because it is capable of losing a...

Q: Each of the following compounds exhibits two electrophilic centers. Identify both

Each of the following compounds exhibits two electrophilic centers. Identify both centers in each compound. (Hint: You will need to draw resonance structures in each case.)

Q: Strychnine (6), a notorious poison isolated from the strychnos genus

Strychnine (6), a notorious poison isolated from the strychnos genus, is commonly used as a pesticide in the treatment of rodent infestations. The sophisticated structure of strychnine, first elucidat...

Q: 77. All of the following are significant resonance structures of the

77. All of the following are significant resonance structures of the phenyl carbocation, EXCEPT: 78. Which of the following resonance structures is the greatest contributor to the resonance hybrid?...

Q: (R)-(−)-Carvone is responsible for the characteristic minty odor and

(R)-(−)-Carvone is responsible for the characteristic minty odor and flavor of spearmint oil, and it can also serve as a useful chiral starting material for organic synthesis. A carb...

Q: Would you expect nitroethylene to be more or less reactive than ethylene

Would you expect nitroethylene to be more or less reactive than ethylene in a Diels–Alder reaction? (Hint: Draw the resonance structures of nitroethylene.)

Q: Fluorenyldiene 1 is a highly conjugated, planar molecule that is readily

Fluorenyldiene 1 is a highly conjugated, planar molecule that is readily oxidized to dication 2. Draw at least four other resonance structures of dication 2 and identify why the resonance structure s...

Q: Rippertenol is a compound made by termites and used by the insects

Rippertenol is a compound made by termites and used by the insects to defend themselves from predators. Due to its complexity, the first synthesis of rippertenol was not reported until more than 30 ye...

Q: The following two drawings are resonance structures of one compound:

The following two drawings are resonance structures of one compound: But the following two drawings are not resonance structures: These two drawings represent two different compounds. Explain.

Q: Azulene exhibits an appreciable dipole moment, and an electrostatic potential map

Azulene exhibits an appreciable dipole moment, and an electrostatic potential map indicates that the five-membered ring is electron rich (at the expense of the seven-membered ring). a. In general, a...

Q: Due to their potential application in organic electronic devices, such as

Due to their potential application in organic electronic devices, such as television screens, a large number of compounds containing quinoidal pi systems (such as compound A) have been prepared. Reduc...

Q: Consider the structures for naphthalene and phenanthrene. /

Consider the structures for naphthalene and phenanthrene. a. Draw all three resonance structures of naphthalene and then explain why the C2−C3 bond has a longer bond length (1.42 &A...

Q: When benzene is treated with 2 in the presence of CuCl2,

When benzene is treated with 2 in the presence of CuCl2, iodination of the ring is achieved with modest yields. It is believed that CuCl2 interacts with 2 to generate +, which is an excellent electrop...

Q: Draw a mechanism for the following reaction and make sure to draw

Draw a mechanism for the following reaction and make sure to draw all three resonance structures of the sigma complex:

Q: Draw both resonance structures of the enolate formed when each of the

Draw both resonance structures of the enolate formed when each of the following ketones is treated with a strong base:

Q: Draw all resonance structures of the sigma complex formed when toluene undergoes

Draw all resonance structures of the sigma complex formed when toluene undergoes chlorination at the para position.

Q: Historically, the nitroso group has been known as a strong deactivator

Historically, the nitroso group has been known as a strong deactivator, yet an ortho/para-director, in electrophilic aromatic substitution reactions. For example, nitration of nitrosobenzene affords m...

Q: As with aldehydes and ketones, the α position of esters can

As with aldehydes and ketones, the α position of esters can also be deprotonated. The enolate of ethyl diethoxyacetate was prepared in a synthesis of leustroducsin B, a natural product t...

Q: The m- and p-substituted methyl benzoates listed in the

The m- and p-substituted methyl benzoates listed in the table below were treated with NaOH in dioxane and water. The rate constants of saponification, k, are also listed in the table. Provide structur...

Q: Draw resonance structures for the conjugate base that is produced when each

Draw resonance structures for the conjugate base that is produced when each of the following compounds is treated with sodium ethoxide:

Q: Draw the enolate ion that is formed when each of the following

Draw the enolate ion that is formed when each of the following compounds is treated with sodium ethoxide. In each case, draw all resonance structures of the enolate ion and predict whether a substanti...

Q: Pyridine undergoes electrophilic aromatic substitution at the C3 position. Justify this

Pyridine undergoes electrophilic aromatic substitution at the C3 position. Justify this regiochemical outcome by drawing resonance structures of the intermediate produced from attack at C2, at C3, and...

Q: Draw the resonance structures of a fully deprotonated phosphatidic acid.

Draw the resonance structures of a fully deprotonated phosphatidic acid.

Q: Draw the Lewis structure for the molecules. Include all lone pairs

Draw the Lewis structure for the molecules. Include all lone pairs of electrons. If resonance structures are needed to describe the Lewis structure, draw all possible resonance structures for NO, BF3,...

Q: Draw Lewis dot structures for each of the following exceptions to the

Draw Lewis dot structures for each of the following exceptions to the octet rule. a. SbCl52- b. XeF4 c. CIF3 d. BCl3 e. PCl5 Draw all possible resonance structures for each of the following, ass...

Q: ICl2− Draw the Lewis structure for the ion. Show

ICl2− Draw the Lewis structure for the ion. Show the formal charges of all atoms in the correct structure. Include all lone pairs of electrons. If resonance structures are needed to describe the Lewis...

Q: Lewis Dot (include all resonance structures here; *check Name

Lewis Dot (include all resonance structures here; *check Name of formal charge to determine preferred structure, if any) Electron Pair Name of Molecular Bond Bond Dipole

Q: Draw the lewis structure with any resonance structures, formal charge calculation

Draw the lewis structure with any resonance structures, formal charge calculation, VSEPR: electron geometry and bond angle about, molecular geometry and bond angle about atom same or different than VS...

Q: Draw the Lewis structure for the polyatomic hydroperoxyl (HO2-). Be

Draw the Lewis structure for the polyatomic hydroperoxyl (HO2-). Be sure to include all resonance structures that satisfy the octet rule.

Q: Complete the following table. Consider the central atom when determining e

Complete the following table. Consider the central atom when determining e- geometries. Be sure to include all equivalent resonance structures of the molecules if applicable.

Q: Draw the Lewis structure for the polyatomic hydroperoxyl (HO2-) anion

Draw the Lewis structure for the polyatomic hydroperoxyl (HO2-) anion. Be sure to include all resonance structures that satisfy the octet rule.

Q: Formula Name of structure Lewis Structure and Resonance Structures /

Formula Name of structure Lewis Structure and Resonance Structures

Q: 1. An object will sink in a liquid if the density

1. An object will sink in a liquid if the density of the object is greater than that of the liquid. The mass of a sphere is 4.69 g. What should be the volume of this sphere for it to sink in liquid me...

Q: 4. Consider the two possible Lewis structures of NOF:

4. Consider the two possible Lewis structures of NOF: / a. Are the two Lewis structures resonance structures? Answer: Yes or No b. Identify the most likely structure of NOF. Answer: Structure (I) o...

Q: Draw the Lewis structure for the trisulfur (S3) rule molecule

Draw the Lewis structure for the trisulfur (S3) rule molecule. Be sure to include all resonance structures that satisfy the octet rule.

Q: CIO2 KrF4 Lewis structure Total # of valence electrons electron groups (

CIO2 KrF4 Lewis structure Total # of valence electrons electron groups (domains) on central atom resonance structures (Yes or No) Molecular geometry Angles around central atom Formal charge on central...

Q: CHM 221-M50 Lab 02 Resonance Structures & N =

CHM 221-M50 Lab 02 Resonance Structures & N = CHM 221-M50 Lab 02 Resonance Structures NH2 LNH м сно N CHO

Q: Provide five additional resonance structures (excluding the original structure) for

Provide five additional resonance structures (excluding the original structure) for the molecule shown below.

Q: Draw resonance structures for the following structures, and include the electron

Draw resonance structures for the following structures, and include the electron movement.

Q: Draw two additional resonance structures for the diene given below to illustrate

Draw two additional resonance structures for the diene given below to illustrate that the formyl group (-CHO) is an electron withdrawing group by resonance.

Q: Part B AlH3 Draw the Lewis structure for

Part B AlH3 Draw the Lewis structure for the molecule. Include all lone pairs of electrons. If resonance structures are needed to describe the Lewis structure, draw all possible resonance structures...

Q: Do the following for the compound C2H5NO: 1. Complete

Do the following for the compound C2H5NO: 1. Complete the two resonance structures below. Add all necessary bonds and lone pairs 2. For both structures (A and B) assign the formal charges for atoms 1-...

Q: Which compound below exhibits resonance? In other words, which has

Which compound below exhibits resonance? In other words, which has resonance structures when the Lewis dot structure is drawn? a. NaF b. H2O c. NO31- d. C2H2 e. PF3

Q: Draw at least three different resonance structures for each of the following

Draw at least three different resonance structures for each of the following compounds. You will need to draw a Lewis Dot structure first. Include all formal charges for each resonance structure. a....

Q: Draw the Lewis structure for the ethylene (C2H4) molecule.

Draw the Lewis structure for the ethylene (C2H4) molecule. Be sure to include all resonance structures that satisfy the octet rule.

Q: Formula Total e-Positions # of valence e- Lone Pairs

Formula Total e-Positions # of valence e- Lone Pairs Single Double Bonds Bonds Lewis Structures, if equivalent resonance structures are predicted,