(Solved): The \( { }^{1} \mathrm{H} \) spectrum of 3-heptanone \( \left(\mathrm{C}_{7} \mathrm{H}_{14} \mathr ...

The \( { }^{1} \mathrm{H} \) spectrum of 3-heptanone \( \left(\mathrm{C}_{7} \mathrm{H}_{14} \mathrm{O}\right) \) recorded in \( \mathrm{C}_{6} \mathrm{D}_{6} \) solution at \( 298 \mathrm{~K} \) at \( 500 \mathrm{MHz} \) is given below. The \( { }^{1} \mathrm{H} \) spectrum has signals at \( \delta 0.79,0.91,1.14,1.44,1.94 \) and \( 1.97 \) (partly overlapped) \( \mathrm{ppm} \). The 2-dimensional \( { }^{\prime} \mathrm{H} \mathrm{H}^{-} \mathrm{H} \operatorname{COS} \mathrm{Y} \) spectrum is given on the facing page. From the COSY spectrum, assign the proton spectrum i.e. determine the chemical shift corresponding to each of the protons in the molecule. 'H COSY spectrum of 3-heptanone (recorded in \( \mathrm{C}_{6} \mathrm{D}_{6} \) solution at 298K, at \( 500 \mathrm{MHz} \) ).