Can someone please read this NMR analysis for me ? (identifying what functional

Question

Can someone please read this NMR analysis for me ? (identifying what functional group is each peak) this is part of an experiment of an unknown sample I have no other information please help

Sample 303 File: exp Pulse Sequence s 2pul Solvent cdc13 Temp 26.0 C 299.1 K Operator Isanna Mercury-200 "local host" Relax. delay 1.000 sec Pulse 45.0 degrees Acq time 1.998 sec Width 320 1.0 Hz 16 repetitions OBSERVE H1, 200.049 2544 MHz DATA PROCESSING FT size 16384 Total time 0 min, 49 sec 0.17 INDEX FREQUENCY PPM HEIGHT 1453.1 7.264 76.2 145 1.2 7.254 95.9 44 1.1 2.205 48.9 439.5 2.197 5 1.5 436.8 2.183 55.5 433.6 2.168 149.4 432.1 2.160 151.2 426.2 2.131 93.9 427.0 2.134 94.2 398.1 1.990 88.0 391.8 1.959 134.4 11 386.0 1.929 12 61.3 384.0 1.920 13 44.7 14 31 1.3 1.556 70.2 1 ppm 1.00 0.98 0.20

Explanation / Answer

Hi, you have carbonyl function which can identified by the peak appearing at 1.9-2.2 ppm. There are two types of carbonyl groups. (Which can be keto or ester or anhydirde). Among the mentioned carbonyl functional groups two types are present. In 1H NMR spectra CDCl3 corresponding peak appear at 7.26 ppm. There is at 1.56 ppm moisture peak in CDCl3 spetra u can see.

Conclusion: U have only hydrozens present as adjacent to carbonyl function. No other aromatic, unsaturated or aliphatic hydrozens present. We can guess cyclic compounds like (1,4-cyclohexane dione or dihydrofuran-2,5-dione or 1,6-dioxecane-2,5,7,10-tetraone).

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