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Compose a table that contains the important peaks for the experimental and literature IR values of Salicylic Acid • Describe the results in a paragraph: 1) Are there any trends in the peaks? 2) Compare the peaks between literature and experimental values

Compose a table that contains the important peaks for the experimental and literature IR values of Salicylic Acid • Describe the results in a paragraph: 1) Are there any trends in the peaks? 2) Compare the peaks between literature and experimental values

Pushing Electrons
Pushing Electrons
4th Edition
ISBN:9781133951889
Author:Weeks, Daniel P.
Publisher:Weeks, Daniel P.
Chapter3: Mechanisms
Section: Chapter Questions
Problem 143EQ
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Compose a table that contains the important peaks for the experimental and literature IR values of Salicylic Acid • Describe the results in a paragraph: 1) Are there any trends in the peaks? 2) Compare the peaks between literature and experimental values
60 1526.657 1983.424 5 964.9533 1083.263 40 852.896 867.7981 1030.891 785.3174 1384.128 30 -892.5221 1324.853 1578.952 1189.181 >2859.901 20 66977.58839 3238.846 759.5978 1156.246 1210.494 1465.33314339421 1249.093 1295.345 10 1613.008 1659.781 2000
Transcribed Image Text:60 1526.657 1983.424 5 964.9533 1083.263 40 852.896 867.7981 1030.891 785.3174 1384.128 30 -892.5221 1324.853 1578.952 1189.181 >2859.901 20 66977.58839 3238.846 759.5978 1156.246 1210.494 1465.33314339421 1249.093 1295.345 10 1613.008 1659.781 2000
#3 $ 4 तं INFRARED SPECTRAL CORRELATION TABLE The following table is a guideline for detection of functional groups within an IR spectrum. *Do not use these values in your reports as "literature values" in your IR table. These values must be obtained from the SDBS database for your particular compound. Note: The position of the C-O absorption is approximately 30 cm¹ lower if the functional group is conjugated with a C-C double bond (either alkene or benzene ring). Thus, for example, a conjugated ester may absorb at the same position as a non-conjugated ketone. Bond stretch Functional Group(s) O-H O-H N-H C-H I C=0* C=O* C=0* C=C Alcohol, phenol Carboxylic acid Amine, amide Aldehyde, ketone, carboxylic acid. % 5 Ester Amide Alkene Aromatic 0, 6 Characteristic absorption range (cm) 3200 - 3600 .0 3400-2500 3500-3100 3200-2800 1710-1720 1730-1750 MacBook Pro 1660-1695 1680-1600 1600 (m) and 1475 (m) 40 & 7 Wet samples will also give this absorption from the O-H bonds in water. A very characteristic peak - broad and shallow. Takes up most of the range given. Remarks Primary amines give a double peak. Almost all organic compounds will have this absorption. A strong, sharp, peak; a C-O absorption is usually the most intense peak in the spectrum. 14 * 00 8 ditto ditto - 0 ( 9 ***** O
Transcribed Image Text:#3 $ 4 तं INFRARED SPECTRAL CORRELATION TABLE The following table is a guideline for detection of functional groups within an IR spectrum. *Do not use these values in your reports as "literature values" in your IR table. These values must be obtained from the SDBS database for your particular compound. Note: The position of the C-O absorption is approximately 30 cm¹ lower if the functional group is conjugated with a C-C double bond (either alkene or benzene ring). Thus, for example, a conjugated ester may absorb at the same position as a non-conjugated ketone. Bond stretch Functional Group(s) O-H O-H N-H C-H I C=0* C=O* C=0* C=C Alcohol, phenol Carboxylic acid Amine, amide Aldehyde, ketone, carboxylic acid. % 5 Ester Amide Alkene Aromatic 0, 6 Characteristic absorption range (cm) 3200 - 3600 .0 3400-2500 3500-3100 3200-2800 1710-1720 1730-1750 MacBook Pro 1660-1695 1680-1600 1600 (m) and 1475 (m) 40 & 7 Wet samples will also give this absorption from the O-H bonds in water. A very characteristic peak - broad and shallow. Takes up most of the range given. Remarks Primary amines give a double peak. Almost all organic compounds will have this absorption. A strong, sharp, peak; a C-O absorption is usually the most intense peak in the spectrum. 14 * 00 8 ditto ditto - 0 ( 9 ***** O
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