The two molecules below are constitutional isomers with the formula C4H10. Explain how 1H NMR and 13C spectra might differ in regards to: 1) Chemical shifts 2) Peak shifts 3) Relative height of peaks 4) Number of peaks

Why is it that D hydrogens have a higher chemical shift than the E hydrogens? Aren't the D hydrogens less shielded than the E hydrogens which have carbons surrounding on both sides? And less shielding means higher chemical shift required?

Assign structures to thefollowing compounds(A, B, C, andD) on the basis of themolecular formulas and spectra given. You will haveto determine therelative ratio ofthe protons from the integration curve shown for each peak.

xx How many signals are expected in the ¹H NMR spectrum of the given compound? (Enter a numerical value.)

How many signals would you expect to see in the 1H NMR spectrum of each of the five compounds with molecular formula C6H14?

What compound is represented by the following NMR spectrum?  There are 5 signals in the picture I included. They are: A) 7.2 ppm, 5H, multiplet B) 4.8 ppm, 2H, singlet C) 2.6 ppm, 2H, quartet D) 1.2 ppm, 1H, singlet E) 1.1 ppm, 3H, triplet The molecular formula is C9H13N

Pl explain too

Based upon the following NMR SPectrum please list the chemical shifts, multiplicity, and assignments of the major peaks

1) Listen What are multiplicities of the signals for the groups identified, A, B and C in the H NMR Spectrum of the molecule shown below? В CH2 CH3 H3C CH3 C CH3 A Singlet, doublet, triplet Doublet, singlet, quartet Singlet, multiplet, triple Singlet, singlet, singlet

Predict the appearance of the 'H NMR spectrum of the following molecule: CH2CI CH3