black 2D Erasota 1 ppm SolutionSpectral data first spectrum

black 2D: Erasota 1 [ppm)

Solution

Spectral data

first spectrum (top)

shows,

1H NMR

0.8 ppm (triplet, 3H) for CH3 next to CH2

1.05 ppm (multiplet, 4H) for CH2\'s next to CH3

1.28 ppm (2H) for CH2 next to CH2OH

3.25 ppm (triplet, 2H) for CH2 between CH2 and Oxygen

Possible structure,

CH3-CH2-CH2-CH2-CH2-OH

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Second spectrum (middle)

shows

1H NMR

0.26 ppm (singlet)

Only alkane present could be 2,2,-dimethyl-propane (tert-butane)

--

Third spectrum (bottom)

shows

1H NMR

7.2 ppm (multiplet 3H) for phenyl protons

7.8 ppm (doublet, 2H) for phenyl protons

9.8 ppm (singlet, 1H) for aldehydic proton

Possible structure

C6H5-CHO

benzaldehyde