Question

Spectra Set # 3 CH14 more thar this band is greater than 3000 Transmittance R 8 8 9 2863 2966 & 9o2 2000 Warenumbers (cm-1) 6H 1H 2H 1Η PPM

Determine the unsaturation number (UN#) for the unknown compounds using the molecular formula. Determine the functional groups present in the IR spectrum

Determine the final structure of the unknown

Answer 1

due IR stretch the sto? above 3000 tl is t-t stretch. the to sech around 3000 - 2850 Cmt 15 the sto3 T-H stretch. peak around 1544 is for at stretch TO It is an aliphatic alene. Mol. Formula - [7 HIU DOU= 2t +2-H - - 2x7+2-14 - 2 1 has one to it double tond. TH of m, 1H) for altrone 155.7 is Sc=CH2 set of is for another (55.0, 2H, h) 2H for alkene ,H HO=0 (slig, 2H, a) is for the the directly attath with double tond. It is quabet due to neighbouring The 5 th go. HECHO TH₂ CH₂ for CH with CH2 SP. (slig, lt, nonet) is neighbouring 2x CH3 me=CH2 CH3 CH CH - CH₂ - CH2 with neighbouring For CH2 (51.2, 24, 2) is THE 5 CH 9: e=CH2 CH3-CH- -CH-CH2-CH2 CH₃

axTHy it (510, SH, doublet) is having neighbouring for CH 50 structure its THz. THTH-CH2-CH=CH2 CH3