Question

Identify the important diagnostic peaks from the IR spectrum, including the cm^-1, and the bond that corresponds to each peak. List all possible classes of compounds this compound could be. Does it contain carbon-carbon double or triple bonds?

LOD D 4000 3000 2000 1500 1000 MAVENUMBERI- 500 31 2937 2876 50 2817 S5 2966 6B 1411 1388 1469 1268 84 994 81 613 84 49 70 1222 86 958 79 72 1214 114 84 934 62 1382 7D 1362 77 843 8B 8B 2716 79 1118 74 677 1751 4 1351 79 84 1056 1046 84 672 520 81 66 1464 68 1284 84 agheppo но

From the mass spectrum and IR, determine the molecular formula and calculate the degree of unsaturation.

On the basis of your analysis, propose a structure that fits all the IR, MS, & CNMR data. Propose a structure that corresponds to the base peak.

Answer 1

Molecule contains aldheyde group and it will shows IR frequency at 1730 cm-1 and it doesn't contains carbon carbon double or triple bond because the IR frequency of carbon carbon double bond is around 1655 Cm-1and that of carbon carbon triple bond is around 1970 cm-1 so here is both frequencies are absent so it will contain carbon carbon single bond with the cmC-H bond IR frequency around 3000 cm-1

Molecular formular CuHgo Degree of unsaturation 1. structure according to IR, NMR ms Base peak TH® Y m/2 = 72 structure Note: to determine It is more easier using of NMR spectroscopy