Where in the IR spectrum would you expect the following molecule to absorb? ball & stick labels 1. Do not list alkane absorptions. 2. Take frequencies from the table below. Enter frequency ranges identically to how they appear in the table. 3. Enter zero in any unused answer box. 1. Do not list alkane absorptions. 2. Take frequencies from the table below. Enter frequency ranges identically to how they appear in the table. 3. Enter zero in any unused answer box. Functional Group Absorption (cm) Intensity Functional Group Absorption (cm) Intensity Alkene -CH 3020-3100 Medium Alcohol 0-H 3400-3650 Medium, broad Alkene C-C 1640-1680 Medium Alcohol Co 1050-1150 Medium Arene C-H 3030 Weak Carboxylic acid OH 2500-3100 Strong, broad 1660-2000 Weak Arene CC 1450-1600 Medium Carboxylic acid CHO 1710 Strong Alkyne NCH 3300 Strong Ester C. 1735 Strong All In CNC 2100-2260 Medium 1200-1250 Strong Medium 1000-1100 Strong Strong Ester sp?co Ester spc-o Aldehyde Co Aldehyde C-H Ketone Co 1730 Nitrile CNN 2210-2260 Alkyl halide ca 600-800 Alkyl halide C-Br 500-600 Amine N.H 3300-3500 Strong Strong 2720 Weak Medium 1715 Strong Amine C-N 1030-1230 Medium Amide C- 1690 Strong Nitro 1540 Strong Amide N-H 1 amides have 2 N-H stretches, 3200,3400 20 amides have 1 N-stretch Medium Expected absorption frequencies, or frequency ranges, are