Question

I need #2 answered

Spectroscopy Problem Set15pts CHEM220B Spring 2019 1. Unknown number 44 SU 2. Mass Spectrum (3pts) a. Molecular lon m/z value l08 Attach your unknown spectra to this sheet. and structure of the Molecular lon b. Base Peak m/z value and structure of that ion c. One other significant peak m/z value and structure of that ion 3. C13 NMR Spectrum (3pts) Draw Structure of Compound on the C13 NMR spectrum and identify each signal with the appropriate Carbon. 4. Proton NMR Spectrum (3pts) Draw Structure of Compound on the Proton NMR spectrum and identify each sign with the appropriate proton. 5. IR Spectrum (3pts) Identify three bands in the spectrum that are consistent with your structure. 6. Structure of unknown (3pts)

Answer 1

D a. M/2=los, structure of molecular ion b. Base reak = 108 (m/2) e. another significan Peak : ("/2=65) 13C NMR te (6) = 5900m 26 (s) = 1160pm 30 (6) = 1300pm 4c (6) = 120ppm . 5H 34 due to benzene ring due to - CH₂ Cs spo C-H 3000 cnl benzene c=c, 1400-1600ant str. cnc (1506 ant) (Best wished}