Multiple ChoicePredict the splitting pattern (multiplicity) for the following molecule: 584views5rank4comments
Multiple ChoicePredict the splitting pattern (multiplicity) for the following molecule: 855views3rank1comments
Textbook QuestionPredict the multiplicity (the number of peaks as a result of splitting) and the chemical shift for each shaded proton in the following compounds. (a) CH3-CH2-CCl2-CH3 (b) 1035views
Textbook QuestionWhy is there no coupling between the a and c protons or between the b and c protons in the cis and trans alkenes shown in Figure 14.20?450views
Textbook QuestionPredict the splitting patterns for the signals given by the compounds in Problem 4. d. 431views
Textbook QuestionPredict the splitting patterns for the signals given by the compounds in Problem 4. c. 473views
Textbook QuestionLabel each set of chemically equivalent protons, using a for the set that will be at the lowest frequency in the 1H NMR spectrum, b for the next lowest, and so on. Indicate the multiplicity of each signal. c. 536views
Textbook QuestionIn Figure 15.34, Hₐ was assumed to be 'up.' How does the analysis change if we assume instead that Hₐ is down?342views
Textbook QuestionThough Figure 15.34 was concerned with the appearance of Hₐ , how would H₆ appear in the spectrum?339views
Textbook QuestionEvery number in Pascal’s triangle is the sum of the two numbers above it. Given this, fill in the missing numbers.<IMAGE>357views
Textbook QuestionIndicate the number of signals and the multiplicity of each signal in the 1H NMR spectrum of each of the following compounds:c. ClCH2CH2CH2Cl 307views
Textbook QuestionIndicate the number of signals and the multiplicity of each signal in the 1H NMR spectrum of each of the following compounds: a. CH3CH2CH2CH2CH2CH3767views
Textbook QuestionPredict the splitting patterns for the signals given by the compounds in Problem 4. i. 475views
Textbook QuestionPredict the splitting patterns for the signals given by the compounds in Problem 4. j. 481views
Textbook Question(a) Draw all of the possible spin states to explain why a hydrogen with four neighbors appears as a quintet (quint, five peaks).333views
Textbook Question(•) Predict the splitting pattern for each of the indicated hydrogens in Assessment 15.59. a429views
Textbook Question(•) Predict the splitting pattern for each of the indicated hydrogens in Assessment 15.59. b359views
Textbook Question(•) Predict the splitting pattern for each of the indicated hydrogens in Assessment 15.59. c379views
Textbook Question(•) Predict the splitting pattern for each of the indicated hydrogens in Assessment 15.59. e388views
Textbook QuestionDescribe the 1H NMR spectrum you would expect for each of the following compounds, indicating the relative positions of the signals: b.397views
Textbook QuestionDescribe the 1H NMR spectrum you would expect for each of the following compounds, indicating the relative positions of the signals: d.426views
Textbook QuestionDescribe the 1H NMR spectrum you would expect for each of the following compounds, indicating the relative positions of the signals: i. 513views
Textbook QuestionHow would the 1H NMR spectra for the four compounds with molecular formula C3H6Br2 differ?608views
Multiple ChoiceWhich of the following compounds gives a 1H NMR spectrum consisting of only a singlet, a triplet, and a pentet?74views
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