Here is one MS and one IR spectra for an unknown compound wr

Here is one MS and one IR spectra for an unknown compound, write what are interesting peaks in both spectra and what they symbolize, then combine two spectra give a general conclusion/guess on this unknown compound.

Average of 12.450 to 12.468 min 14Jar 1803.Didata.ms - Saturated ( 8000000O 7500000 7000000 6500000 55000001 a00ol 4500000 272.0 400003 350000 350000D 25 2050000 1800003 241.0 130000) 65.0 50000 121.0 180.9 39.0 148.9 15.1 164.9 196.9213.0 296.1 313.1 331.0 356.1 miz--> 20 4060 80 100 120 140 160.180 200 220 240 260 280300320 .340 360

Solution

From Mass spectrum following information can be had,

Molicular mass of compound is 272 reflected by it\'s molicular ion peak at 272. Further, Most stable peak that\'s base peak at 91 could be due to benzyl fragemt.

IR Spectrum ,peak around 1706 cm-1 could be ketone group. Nd peak around 2900cm-1 could be due to alphaitic C-H nd a peak around 1584 could be due C=C bond absoroption nd a peak around 1004 cm-1 could be due to C-O peak.

Thus, in our compound we have one carbonyl group , aromatic ring and one carbon oxygen bond.