Universidad de Puerto Rico Recinto de Humacao Departamento de Química Date: Satu

Question

Universidad de Puerto Rico Recinto de Humacao Departamento de Química Date: Saturday, March 24,2018 Time: 2:10 PM Eastern Daylight Time 100.1 95 90 1213 85 785.48 1189.55 1475.65 1307.62 1344.53 1368.40 9409984033 80 967.63 7.60 75 1387.87 %T 70 145422 2874.84 65 60 2948.99 1066.29 1005.03 50 47.8 4000.0 3600 1800 cm 3200 2800 2400 2000 1600 1400 1200 1000 800 650.0 Instrument Model: Spectrum 100 Background Scans Accumulations: 4 Detector LiTa03 Source: MIR Date Modified: Saturday, March 24, 2018 2:10 PM Easten Daylight Time Spectrum Pathname: C:lpel data spectralBianca sp Analyst: organical Spectrum Name: Bianca.sp Instrument Accessory Instaumont Softvare Vor CDIT32 Main 00 02 7000 7 Tuarv-2006 11:32:41

Explanation / Answer

Since there is no peak in the range 1820 - 1660 cm-1, thus C=O is absent. Thus, aldehyde, ketone, carboxylic acid, amide,ester, anhydride functional groups are absent. Broad absorption at 3365.47 cm-1 is due to presence of OH bond. Strong absorption bands at 2948 cm-1 and 2874 cm-1 is due to C-H bond stretching in alkanes.

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