List important IR signals for each of these two compounds, and beside each signal indicate what kind of bond made each signal and propose structure for C5H12O that are consistent with the IR data.

Predict the structural formula for compound containing (C, H, N) having spectra data as shown below, explain : Rel. Intensity 100 Relative Transmittance M.wt = 121 80- %M+1= 9,16 60 40 20 0.0 0.0 0.8- 0.6 0.4 0.2 Number of nitrogen = 1 اماند ار کر X71 الرمايي ~H. CH₂CH 4 40 mtd 3000 80 m/z 2000 Wavenumber (cm-1) 5 CH₂ 4 2 S 18 120 GHz 3 q 8 (ppm) 1000 2 160 500 CH₂ D ~Asn

The mass spectrum of an alkene, C8H16, exhibits a peak at m/z = 41. Draw two isomers that are consistent with these data.

Identify the following spectra. Assign all pertinent peaks (~5-6 peaks). Place the structure of the compound in the box on the lower left-hand corner of spectrum.