Multiple ChoicePredict the splitting pattern (multiplicity) for the following molecule: 577views5rank4comments
Multiple ChoicePredict the splitting pattern (multiplicity) for the following molecule: 838views3rank1comments
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) 1000views
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?445views
Textbook QuestionPredict the splitting patterns for the signals given by the compounds in Problem 4. d. 415views
Textbook QuestionPredict the splitting patterns for the signals given by the compounds in Problem 4. c. 452views
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. 527views
Textbook QuestionIn Figure 15.34, Hₐ was assumed to be 'up.' How does the analysis change if we assume instead that Hₐ is down?331views
Textbook QuestionThough Figure 15.34 was concerned with the appearance of Hₐ , how would H₆ appear in the spectrum?334views
Textbook QuestionEvery number in Pascal’s triangle is the sum of the two numbers above it. Given this, fill in the missing numbers.<IMAGE>317views
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 282views
Textbook QuestionIndicate the number of signals and the multiplicity of each signal in the 1H NMR spectrum of each of the following compounds: a. CH3CH2CH2CH2CH2CH3740views
Textbook QuestionPredict the splitting patterns for the signals given by the compounds in Problem 4. i. 460views
Textbook QuestionPredict the splitting patterns for the signals given by the compounds in Problem 4. j. 469views
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).323views
Textbook Question(•) Predict the splitting pattern for each of the indicated hydrogens in Assessment 15.59. a415views
Textbook Question(•) Predict the splitting pattern for each of the indicated hydrogens in Assessment 15.59. b340views
Textbook Question(•) Predict the splitting pattern for each of the indicated hydrogens in Assessment 15.59. c359views
Textbook Question(•) Predict the splitting pattern for each of the indicated hydrogens in Assessment 15.59. e369views
Textbook QuestionDescribe the 1H NMR spectrum you would expect for each of the following compounds, indicating the relative positions of the signals: b.389views
Textbook QuestionDescribe the 1H NMR spectrum you would expect for each of the following compounds, indicating the relative positions of the signals: d.421views
Textbook QuestionDescribe the 1H NMR spectrum you would expect for each of the following compounds, indicating the relative positions of the signals: i. 506views
Textbook QuestionHow would the 1H NMR spectra for the four compounds with molecular formula C3H6Br2 differ?600views
Multiple ChoiceWhich of the following compounds gives a 1H NMR spectrum consisting of only a singlet, a triplet, and a pentet?72views
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