The electron ionization (EI) mass spectrum of 2-hexanone (C6H12O, molecular weight 100.16) is shown below. Draw the structure responsible for the signal at m/z 58 and name the fragmentation mechanism involved.

Q: The mass spectrum of 2,2-dimethylpropane shows only a very weak molecular ion peak at m/z = 72.…

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Q: (a) Predict the values of m>z and the structures of the most abundant fragments you would observe…

A: Since we are entitled to answer up to one question, we’ll answer the first question as you have not…

Q: 2. Refer to the following spectrum. Deduce the structure of the compound (C&H:00) by providing…

A: A question based on IR spectroscopy that is to be accomplished.

Q: (c) 1-phenyl ethanol gives following peaks in its mass spectrum: m/e =122(M+); 107 (100% intensity);…

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Q: 3 pts) Predict the number of signals expected and state their splitting pattern in the 1H NMR…

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Q: (b) Determine the structure of an organic compound with a molecular ion at m/z 73 and absorption in…

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Q: A graduate student was following a procedure to make 3-propylcyclohexa-1,4-diene. He overheated the…

A: a) The mass spectrum showed the correct molecular weight, but the base peak was at M-29 rather than…

Q: Explain why a ketone carbonyl typically absorbs at a lower wavenumber than an aldehyde carbonyl…

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Q: Draw the structure of the compound shown in the mass spectra given its molecular formula C8H9NO.…

A: There are different types of fragmentation methods-  1- alpha cleavage 2- heterolytic cleavage 3-…

Q: (d) What are metastable peaks? Mass spectrum of toluene exhibits two strong peaks at m/e =91 and…

A: The metastable peak is a peak in which the mass spectrum generated by ions created from decay of…

Q: What is the molecular formula for α-himachalene, a hydrocarbon obtained from cedar wood, which has…

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Q: Which of the compounds below best fits the following IR spectrum? L00 2266 cm 2969 cm 3426 cm1 1731…

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Q: of 1650 cm−1for the desired product. The mass spectrum showed the correct molecular weight, but the…

A: Desired product is  3-propylcyclohexa-1,4-diene.It has C=C str at 1650 cm−1 Actual product formed…

Q: Draw the structure of the important peaks in the mass spectrum of C9H8O (unsaturation = 6) Major…

A: Mass spectrometry is one of the best techniques for analyzing the structure of a molecule and…

Q: 2. The mass spectrum of 1-ethyl-1-methylcyclohexane shows many fragments, with two in very large…

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Q: The carbonyl absorption of an amide typically occurs in the 1630–1680 cm-1 range, while the carbonyl…

A: The absorption frequency of carbonyl group of amide is less than esters.

Q: The mass spectrum of 1-ethyl-1-methylcyclohexane (MW-126) shows many fragments, with two in very…

A: Structures of two fragments

Q: 2) A compound having molecular formula C3H60 gave the following spectral data: (i) UV: Amax 292 nm,…

A: Molecular formula — C3H6O

Q: Suppose you have two bottles, labeled ketone A and ketone B. You know that one bottle contains…

A: Given: CH3CO(CH2)5CH3 and CH3CH2CO(CH2)4CH3 .Ketone A at m/z = 99 and Ketone B at m/z = 113The…

Q: Show the fragmentation that accounts for the cation at m/z 57 in the mass spectrum of…

A: Fragmentation of 2-m3thylpentane leads to formation of a more stable and abundant species i.e. m/z…

Q: Explain the peaks in the following mass spectra: a. 2-pentanone: m/e 86, 71, 57, 43 (100 %) b.…

A: The mass spectrum is plotted between the mass to charge ratio and the relative abundance of the…

Q: What functional group is most likely present if a compound shows IR absorption at these frequencies?…

A: IR spectroscopy gives information on the functional groups present in the sample. The IR spectrum…

Q: The mass spectrum of an aldehyde shows a parent peak at m/z = 58 and a base peak at m/z 29. Propose…

A: Mass spectra helps in determination of the molecular formula and a possible structure.

Q: Propose structures and fragmentation mechanisms corresponding to ions with mlz 57 and 41 in the mass…

A: Given,

Q: The infiared spectrum of a compound contains a strong absorption at 1702 cm-1. The mass spectrum of…

A: IR spectroscopy means infrared spectroscopy which is useful for identifying the substances and…

Q: 2-Methyl-3-pentanol reacts with PCC to form compound F. () Draw the structure of F. (ii) In the mass…

A: Since you are posted with multiple sub-parts. As per the rule, I am answering first question only.…

Q: 1. Propose a fragmentation pattern for the following compound. CH=C(CH,JCH,CH,OH m/z = 71, 68, 41,…

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Q: The proton NMR spectrum shown below belongs to which molecule d d sept 12 10 ppm OH %24

A: The answer is given as follows

Q: c. CBH10: IR absorptions at 3108-2875, 1606, and 1496 cm 1H NMR spectrum 3 H 5 H 2H 7. 6. 5 3. ppm

A: Question 6 (c) Answer: In the given information, the IR stretching frequency is due to the bond…

Q: what are the major ir absorptions in the functional group region for oleic acid, a common…

A: The major IR absorptions in the functional group region for oleic acid has to be given.

Q: 8. Which molecule generated the following DEPT135 spectrum? CH3 CH3 CH3 HO, H3C CH3 H3C CH3 H3C CH3…

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Q: What is the fragmentation mechanism of the mass spectrum of the compound 3,3-Dimethylglutaric acid…

A: fragmentation of given compound (C7H12O4)

Q: A compound whose molecular formula is C3H202 has the IR spectrum shown. Propose a structure for this…

A: The IR range of the compound shows a wide top in the 3400-2500 cm-1 locale, mostly covering a sharp…

Q: Alcohols undergo an oxidation when treated with Dess-Martin periodinane in dichloromethane. What is…

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Q: Calculate the degree of unsaturation of compound E. What information can be obtained from the…

A: Dear Subscriber! You have posted multiple questions. As per our policy we answered only first…

Q: What is the molecular formula for a-himachalene, a hydrocarbon obtained from cedar wood, which has…

A: The molecular weight of the compounds is equal to the mass-to-charge ratio of the ions which are…

Q: 4. A compound with molecular formula C6H100 gives the following IR spectrum 100 80. 1650 1720 4000…

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Q: Fragmentation patterns can be helpful in distinguishing constitutional isomers. The many isomers of…

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Q: What are metastable peaks? Mass spectrum of toluene exhibits two strong peaks at m/e =91 and m/e=65.…

A: Mass spectra is used to determine the molecular formula and molecular structure of compound. It is…

Q: 8. Propose a structure for the compound having the mass spectrum shown below. Identify the major…

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Q: Predict the number  of peaks and their multiplicity  in the off-resonance decoupled CMR spectra of…

A: Note : Assign a,b,c to non equivalent carbons. Then count the no of signals. Multiplicity depends on…

Q: The mass spectrum of an alkene, C8H16, exhibits a peak at m/z = 41. Draw two isomers that are…

A: The possible isomers of an alkene C8H16 are as follows,

Q: 9. Which of the following structures is consistent with the IR spectra shown below? 80 60 40 20 3500…

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Q: A low-resolution mass spectrum of the neurotransmitter dopamine gave a molecular ion at m/z = 153.…

A: A low resolution mass spectra gives the molecular mass of a compound to the nearest whole number.A…

Q: Which functional group might be present in a compound if it shows IR absorptions at 1715 cm1 and…

A: IR spectroscopy is an important tool for detecting the functional group in an unknown organic…

Q: What are metastable peaks? Mass spectrum of toluene exhibits two strong peaks at m/e 91 and m/e-65.…

A: The mass spectrum is used to determine the structure of a molecule using the mass to charge ratio.…

Q: The treatment of (CH3)2C=CHCH2Br with H2O forms B (molecular formulaC5H10O) as one of the products.…

A: 1H NMR and IR spectroscopy are the techniques, which helps to determine the structure of the organic…

Q: The mass spectrum of octanoic acid, CH3(CH2)6COOH, exhibits a series of peaks differing by 14 amu at…

A: Mass spectroscopy is an analytical method in which the mass-to-charge ration (m/z) of different…

Q: k. N,N-diisopropylethylamine 100 'N' 80 40 20- 25 50 75 100 125 m/z Identify the structure that give…

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