Explain the fact that the C-O stretch in ethers and esters occurs at 1000-1100 cm-1 when the C is sp hybridized, but at 1250 cm- when it is sp2 hybridized.
Q: Consider the following structures: A. Н. H₂C CH₂ H H B. H.CCH, H₂CH H H CH₂ CHS CH₂ D. H₂C HCH₂ CH,…
A: To solve this problem, we need to know the eclipsing and gauche interaction energy due to CH3 and H.
Q: How many molecular orbitals describe 2,4,6-Octatriene ?
A: Molecular orbital forms due to interaction with atomic orbitals .
Q: Which of the Newman projections below depict 3-ethylpentane? CH3 CH2CH3 H. H3CH2C CH2CH3 H3C. H. CH3…
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Q: In Section 15.5c, we learned that the frequency of a C=0 stretch decreases when the c=0 bond is…
A: Stretching frequency is related to bond strength as follows: v = 12πkμ .....(1) where v is the…
Q: 5. Which one of the following compounds is the strongest base? Lil (CH3)2NLI LIOCH3 (CH3)3CH O LIOCH…
A: Strong bases are those base which can donate it's electron readily and accept H+ easily.
Q: Which chair conformation of cis- and trans-1,4-dimethylcyclohexane has the lowest potenital energy?…
A: Cis-1,4-dimethylcyclohexane will have axial-equatorial (a,e) placement of methyl substituents. The…
Q: 6. Which of the following has a C-H stretch that occurs at the lowest stretching wave number?? C)…
A: 6) Which of the following has a C-H stretch that occurs at the lowest stretching wave number?…
Q: Given the partial structure below, add a substituent “X" to C-1 so that it satisfies the indicated…
A: Chair conformation is happened to be the most stable conformation of the cyclohexane. Out of the 4…
Q: Ethylene oxide reacts readily with HO- because of the strain in the three-membered ring. Explain why…
A: Since in Ethylene oxide we have a Oxygen atom in the molecule which creates a partial positive…
Q: Account for the fact that among the chlorinated derivatives of methane, chloro- methane has the…
A: Draw the structures:
Q: Place the following compunds in order from lowest to highest boling points. Explain why you have…
A: C6H14 and C3H8 are alkanes While CH3OH is Alcohol and H2O is water.
Q: A Newman projection of methylcyclohexane is shown below. Identify the which atoms will provide…
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Q: Diels–Alder reaction of a monosubstituted diene (such as CH2=CH– CH=CHOCH3) with a monosubstituted…
A: Given reaction,
Q: Which Newman projection demonstrates the least stable conformation of the C3-C4 bond of…
A: To find: Newman projection that demonstrates the least stable conformation of the C3-C4 bond of…
Q: How many degrees of unsaturation (double bond equivalents) does C4H10ClNO have?
A: Given molecule: C4H10ClNO We have to calculate the degrees of unsaturation (double bond equivalents)…
Q: Assuming standard valencies (C = 4, H = 1, N = 3, 0 = 2, and X = 1), a compound with molecular…
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Q: O O O OH H CH3 H H H H OH H H H 安安安安 H OH H HO H CH(CH3)2 CH(CH3)2 CH(CH3)2 CH(CH3)2 O A C Which…
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Q: 1. Describe the synthesis of : a) NH 3 CH2 CH2 %3D b) NH3 CH3CH2 CH2 CH2NH2 CH2 CH3. CH3 CHIN-CH3…
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Q: Which molecules A through D shown below would, upon hydrogenation of the double bond with Hz and…
A: Stereochemistry of organic compounds. Enantiomers: Enantiomers are non super impossible mirror…
Q: Below is the 3D structure of 4-fluoro-6-methylcyclohexane-1,3-diol. H3C OH Where, red ball…
A: Concept - A Newman projection visualizes the conformation of a chemical bond from front to back,…
Q: .Acidication of triphenylmethanol generates a red-coloured carbocation OH +H LOH2 H20 ? Use curly…
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Q: To which compound is the addition of HBr more highly regioselective (without any shift) and what…
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Q: What types of orbitals overlap to provide stability to the tert-butyl carbocation ((Ch3) 3C +) by…
A: Carbocation is sp2 hybridised. And in hyperconjugation carbocation sp2 orbital interacts with…
Q: 6. Name the following compounds and convert the Fisher projection into corresponding structures with…
A: Given compounds:
Q: Pyrethrin II and pyrethrosin are two natural products isolated from plants of the chrysanthemum…
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Q: 10. Identify the higher energy and lower energy forms of two substituted cyclohexanes, for example…
A: In chair conformation the major interaction that plays role in instability of molecules is…
Q: 10. Identify the higher energy and lower energy forms of two substituted cyclohexanes, for example…
A: The stability of molecules is inversely proportional to the energy of the molecules. This is because…
Q: The following Newman Projection is a representation of which structure? CH CH „CH, H. CH CH CH CH CH…
A: Newman projection :- For the better visualization of conformers of a molecule , Newman projection…
Q: CH2CH3 OH H3C. to zig-zag (line) notation (include stereochemistry) Br H a) OH HO" to Newman…
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Q: Vhich of the following Newman projections does not represent 2-methylhexane? CH H. CH(CH;)2 H.…
A: Given are conformations of 2-methylhexane.
Q: РСС 2-hexanol CH2C12 CH3 CH3CH2CH2CH2 CH3CH2CH2CH, CH3 OH OH II II CH3CH2CH2CH2CH2 он…
A: Alcohols are oxidized into carbonyl compounds and carboxylic acid. The selective oxidation of…
Q: 1. Arrange the following compounds in order of increasing bolling polnt. -CHO -CHCHO CHCHa -CHCHCH…
A: Since you have posted multiple questions, we are entitled to answer the first only. 1) The compounds…
Q: Which compoundshave zero dipole moments?(a) cis-1,2-dichloroethene or cis-1,2-dibromoethene
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Q: 1) For the given compounds, denote each different hydrogen and carbon environment and write how many…
A: Number of signal in 1H NMR ------> number of sets of protons in different electronic environment…
Q: Conformational studies on ethane-1,2-diol (HOCH2¬CH2OH) have shown the most stable conformation…
A: Gauche conformation of ethane-1,2-diol is the most stable conformation when compared to…
Q: (c) Arrange the following species in order of increasing stability. Explain. CH, H,C- CH, CH3 H,C-HC…
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Q: Q8.4 Structure CH3 CH3 ВЕ .C -E D I II What substituent is positioned at B on Structure II? O -H O…
A: Equatorial conformation is more stable than axial confirmation. The stable chair conformation of the…
Q: 6. (Chapter 15-Q37) Indole is an aromatic heterocyclic that has a benzene ring fused to a pyrrole…
A: The molecule given is
Q: rrange the following compounds in order of increasing oiling point: . CH;CH,CH,-NH, b. CH,CH,-C- OH…
A: Boiling point of organic compounds increases with increase in the bond polarity of the molecule. The…
Q: Consider the acyclic isomer of pentane pictured below, informally named isopentane. Using your…
A: Newman projection of a molecule is view taken along a C-C bond in which front carbon is represented…
Q: An aromatic C=C is observed at what wave number? Approx. 1600 cm-1 1640-1680 cm 1 1680-1700 cm-1…
A: According to the question, we need to determine the wave number at which C=C is observed.
Q: 5.) Which is the most stable conformer of 3-bromo-2-methylpentane, as viewed through the C3-C4 bond?…
A: Given Most stable confirmation = to be determined
Q: 5.) Which exhibit both electrophilic aromatic substitution and free radical substitution reaction?…
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Q: 1) Which of the following Newman projections does not represent 2-methylhexane? CH(CH,)2 H,C CH3 H.…
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Q: Molecule Chair conformations and energies (kJ/mol) AE %N1 (kJ/mol) Methylcyclohexane H3C. No…
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Q: 11) which molecule below has S-configuration? A B D
A: We'll answer the first question since the exact one wasn't specified. Please submit a new question…
Q: Arrange from Highest to Lowest Priority *(CO means C=O “C double bond O") 1. R-COCH3 , R-COOH,…
A: This is the concept of Organic and inorganic chemistry
Q: please could they be answered and they aren't graded questions
A: The Newman projection of ethane-1,2-diol is drawn as,
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- 4. Octatetraene, C8H10, is an 8-membered linear carbon chain with alternating single and double bonds. As a result, each carbon is left with an unhybridized p-orbital containing one electron. This problem will take you through steps to construct and fill the molecular orbital diagram for octatetraene based on the way these different p-orbitals can come together. a) The various molecular orbitals formed from octatetraene’s 8 unhybridized p-orbitals are shown on the next page. Draw the nodal planes for each molecular orbital. Hint: A nodal plane is a line through the molecule that denotes the sites of destructive interference. An example is shown below with ethylene. b) Based on the nodal planes, arrange the energy levels corresponding to the 8 molecular orbitals on the energy level diagram (label them using the numbering provided on the left side of the molecular orbitals) on the next page, in order of lowest to highest energy. c) Populate your molecular…Circle the following molecules that have the S configuration. H CH,CH; CH,CH; CH3 ОН CH=CH2 CH3 H;C- H CH;CH, H CH(CH3)2 1 2 3 4.The unsaturation number or degree of unsaturation (U) can be used to determine the number of rings and multiple bonds in a compound from its molecular formula. Given a structure, you can determine the number of hydrogens without having to count them explicitly. Consider three compounds and their degree of unsaturation. (a) A compound A has the molecular formula C7H13ClN2OC7H13ClN2O. How many rings and/or π bonds does it contain?
- The pentadienyl radical, H2C“CH¬CH“CH¬CH2#, has its unpaired electron delocalized over three carbon atoms.(a) Use resonance forms to show which three carbon atoms bear the unpaired electron.(b) How many MOs are there in the molecular orbital picture of the pentadienyl radical?(c) How many nodes are there in the lowest-energy MO of the pentadienyl system? How many in the highest-energy MO?(d) Draw the MOs of the pentadienyl system in order of increasing energyThe pentadienyl radical, H2C“CH¬CH“CH¬CH2#, has its unpaired electron delocalized over three carbon atoms.(a) Use resonance forms to show which three carbon atoms bear the unpaired electron.(b) How many MOs are there in the molecular orbital picture of the pentadienyl radical?(c) How many nodes are there in the lowest-energy MO of the pentadienyl system? How many in the highest-energy MO?(d) Draw the MOs of the pentadienyl system in order of increasing energy. (continued)762 CHAPTER 15 Conjugated Systems, Orbital Symmetry, and Ultraviolet Spectroscopy(e) Show how many electrons are in each MO for the pentadienyl radical (ground state).(f) Show how your molecular orbital picture agrees with the resonance picture showing delocalization of the unpairedelectron onto three carbon atoms.(g) Remove the highest-energy electron from the pentadienyl radical to give the pentadienyl cation. Which carbon atomsshare the positive charge? Does this picture agree with the resonance picture?(h) Add an…The degree of unsaturation, or index of hydrogen deficiency, is the number of pi bonds plus rings in a molecule. Specify the degree of unsaturation (index of hydrogen deficiency) of the following formulas: (a) C9H12 (b) C,H40| (c) C,H,N2
- In a tabular format, enumerate 5 molecules where the following atoms are found in: O (sp3-hybridized) Oxygen (sp2-hybridized) Nitrogen (sp2-hybridized) Carbon (sp2-hybridized) O (sp3-hybridized) Oxygen (sp2-hybridized) Nitrogen (sp2-hybridized) Carbon (sp2-hybridized) Hydrogen (H2o)Methanol (CH3OH)Methane (CH4)Carbon (C=C)(a)The concept of hybridization was first proposed by Linus Pauling in 1931, that explain about the concept of mixing orbitals to form new hybrid orbital suitable for the pairing of electrons to form chemical bonds. Draw the kekule structure of a compound that contains only carbon and hydrogen atoms that has: (1) One sp hybridize carbon, two sp? hybridized carbons and two sp hybridized carbon (ii) Two sp' hybridized carbon and two sp hybridized carbons (ii) Two sp? hybidized carbons and two sp hybydized carbon4. What are the absolute configurations of these two molecules? SH 6. (A) H 5. Which Newman projection represents the most stable conformation of 3-methylpentane when viewed down the 2-3 carbon-carbon bond? CH₂CH3 H3C. H3C H Н (В) Which is/are optically inactive? Н. ОН CH3 H3C, CH₂CH3 HTH Н H₂CH₂C H3C I CH3 ОН I CH3 НО CO₂H Н. (C) H3C CH3 LOH II Н CH3 H H н CH₂Br HOCH 3 CH₂CH3 CH3 III CH₂CH3 II (D) CH₂CH3 OH -H OH CH3 III H3C. H3C H Н CH₂CH3 CH3
- H3C CN 1) i-Bu₂AIH CH3 Ph 2) H3O+For each pair of compounds, predict the one with a higher boiling point. Which compoundshave zero dipole moments?(a) cis-1,2-dichloroethene or cis-1,2-dibromoetheneWhich OH groups are bonded to sp3 hybridized carbon atoms and which are bonded to sp2 hybridized carbons?