(Solved): determine the spec unknown. Spectroscopy Unknown. The spectra and data provided were obtained from ...

Spectroscopy Unknown. The spectra and data provided were obtained from a pure organic molecule. For ${}^1\mathrm{H}$ NMR Spectra, the integral is given in number of hydrogens $(\#\mathrm{H})$ or as a relative ratio. Important coupling constants ( $(j$-values) are listed next to the peaks for some examples. For some spectra, an inset (grey box) is also given showing a "zoom-in" on an important part of the spectrum. Mass Spectrum (not shown): $[\mathrm{M}]=222(100\%)\mathrm{m}/2$ IR Spectrum (not shown): 3098, 2981,1745, 1720,1600, $1490{\mathrm{cm}}^{?1}$ (all listed are strong (s) unless otherwise indicated) ${}^1\mathrm{H}$ NMR Spectrum $\left(400\mathrm{MHz},{\mathrm{CDCl}}_3,25^{?}\mathrm{C}\right)$ ${}^{13}\mathrm{C}$ NMR Spectrum, proton-decoupled $\left(125{\mathrm{MHz}}_2{\mathrm{CDCl}}_3,25^{?}\mathrm{C}\right)$