Organic Chemistry Homework Help

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Structure Determination without Mass Spect

Q. Below you have 1H-NMR's of 4 isomer with the following formula (C8H12O2). Provide a logical structure to each set of signals (#H indicates the number of protons associated with that signal, for example 3H = CH3, 2H=CH2, 1H=CH)

Solved • May 16, 2019

Structure Determination without Mass Spect

Q. Label the protons that give rise to each signal (label Ha, Hb, etc) on both the molecule and the spectrum.

Solved • May 9, 2019

Structure Determination without Mass Spect

Q. if HNMR peak at 0.9 ppm triplet R-CH3 (methyl), 1.1 ppm doublet R3-CH (methine), 1.5 ppm pentate R3-CH, 1.7 ppm pentate R3-CH, 2.3 ppm quartet ar-ch3 (benzylic). what would be the predicted structure?

Solved • Apr 25, 2019

Structure Determination without Mass Spect

Q. the 1H- and 13C-NMR spectra for an unknown compound with molecular formula C7H14O2 are shown below. Deduce a structural formula for this compound.

Solved • Apr 3, 2019

Structure Determination without Mass Spect

Q. 1H NMR (400 MHz, CDCl3) Note that there is an impurity present and the scale is zoomed in. Ignore peaks that are not integrated. identify the peaks for 9-(2-Phenylethenyl) anthracene on this H NMR.

Solved • Apr 2, 2019

Structure Determination without Mass Spect

Q. 1H NMR C9H10O2 IR: 1718cm-1 1H NMR C9H12. Hello, I am a hard time drawing the structures based on the H NMR spectrums. Could you help? Thank you!

Solved • Apr 2, 2019

Structure Determination without Mass Spect

Q. Hello, I am a hard time drawing the structures based on the H NMR spectrums. Could you help? Thank you!

Solved • Apr 2, 2019