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Match the following IR spectrum with the correct molecule. Ž Nam 1500 WAVENUMBER (-1) 2000 d 1000 OH Table 81 Abbreviated Table of Infrared Absorption Ranges of Functional Groupe Finquency Ruge, Intrasty C-H C-H C-H C-H O-H Type of Compound Со C=0 NO₂ Alkanes Alkenes Alkys (-C=C-H) Aromatic rings Monomeric alcohols, phenols Hydrogen bonded alcohols, phenols Monomeric carboxylic acids Hydrogen-bonded carboxylic acids Amines, amides N-H C-C Alkenes C-C C=C C-N Aromatic rings Alkynes Amines, amudes Nitriles Alcohols, ethers, carboxylic acids, esters Aldehydes, ketones, carboxylic acids, eslers Nitro compounds 2850-2970 1340-1470 3010-3095 675-995 3300 3010-3100 690-900 3590-3650 Strong Strong Medium strong Strong Medium Strong Variable Variable, sometimes broad 3500-3650 Medium 3200-3600 2500-3200 Broad 3300-3500 1610-1680 1500-1600 2100-2260 1180-1360 1050-1300 1675-1760 1500-1570 1300-1370 Medium Variable Variable Variable Strong Strong Strong Strong Strong Strong

Match the following IR spectrum with the correct molecule. Ž Nam 1500 WAVENUMBER (-1) 2000 d 1000 OH Table 81 Abbreviated Table of Infrared Absorption Ranges of Functional Groupe Finquency Ruge, Intrasty C-H C-H C-H C-H O-H Type of Compound Со C=0 NO₂ Alkanes Alkenes Alkys (-C=C-H) Aromatic rings Monomeric alcohols, phenols Hydrogen bonded alcohols, phenols Monomeric carboxylic acids Hydrogen-bonded carboxylic acids Amines, amides N-H C-C Alkenes C-C C=C C-N Aromatic rings Alkynes Amines, amudes Nitriles Alcohols, ethers, carboxylic acids, esters Aldehydes, ketones, carboxylic acids, eslers Nitro compounds 2850-2970 1340-1470 3010-3095 675-995 3300 3010-3100 690-900 3590-3650 Strong Strong Medium strong Strong Medium Strong Variable Variable, sometimes broad 3500-3650 Medium 3200-3600 2500-3200 Broad 3300-3500 1610-1680 1500-1600 2100-2260 1180-1360 1050-1300 1675-1760 1500-1570 1300-1370 Medium Variable Variable Variable Strong Strong Strong Strong Strong Strong

Chemistry
Chemistry
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ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
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Match the following IR spectrum with the correct molecule. 

### Infrared Spectrum Analysis and Functional Group Identification **IR Spectrum Overview:** The infrared (IR) spectrum graph displays transmittance (%) against the wavenumber (cm\(^{-1}\)). Various peaks indicate distinct functional groups in the compound. **Matching IR Spectrum to Molecule:** **Given Molecules:** - **a.** Ketone (Propane-2-one) - **b.** Carboxylic acid (Propanoic acid) - **c.** Aldehyde (Propanal) - **d.** Amide (N,N-Dimethylacetamide) - **e.** Alcohol (Butanol) **Table 8.1: Infrared Absorption Ranges of Functional Groups** | Band | Type of Compound | Frequency Range (\(cm^{-1}\)) | Intensity | |------------|-------------------------------------------|-----------------------------|-------------------------| | C–H | Alkanes | 2850–2970 | Strong | | C–H | Alkenes | 1340–1470 | Strong | | C–H | Aromatic rings | 3010–3095, 675–995 | Medium strong | | O–H | Monomeric alcohols, phenols | 3590–3650 | Variable, sometimes broad | | O–H | Hydrogen-bonded alcohols, phenols | 3200–3600 | Broad | | C=O | Aldehydes, ketones, carboxylic acids, esters | 1675–1760 | Strong | | C–N | Amines, amides | 3300–3500 | Medium | | N–H | Amines, amides | 3000–3500 | Medium | **Graph Analysis and Matching:** - **Prominent Peaks Detected in IR Spectrum:** - A strong C=O stretch near 1700 cm\(^{-1}\), characteristic of carbonyl compounds. - Possible broad O–H stretch indicating hydrogen-bonded alcohols or acids. - **Probable Functional Group:** - The presence of a strong C=O stretch near the typical range for aldehydes, ketones, acids, and esters suggests a carbonyl
Transcribed Image Text:### Infrared Spectrum Analysis and Functional Group Identification **IR Spectrum Overview:** The infrared (IR) spectrum graph displays transmittance (%) against the wavenumber (cm\(^{-1}\)). Various peaks indicate distinct functional groups in the compound. **Matching IR Spectrum to Molecule:** **Given Molecules:** - **a.** Ketone (Propane-2-one) - **b.** Carboxylic acid (Propanoic acid) - **c.** Aldehyde (Propanal) - **d.** Amide (N,N-Dimethylacetamide) - **e.** Alcohol (Butanol) **Table 8.1: Infrared Absorption Ranges of Functional Groups** | Band | Type of Compound | Frequency Range (\(cm^{-1}\)) | Intensity | |------------|-------------------------------------------|-----------------------------|-------------------------| | C–H | Alkanes | 2850–2970 | Strong | | C–H | Alkenes | 1340–1470 | Strong | | C–H | Aromatic rings | 3010–3095, 675–995 | Medium strong | | O–H | Monomeric alcohols, phenols | 3590–3650 | Variable, sometimes broad | | O–H | Hydrogen-bonded alcohols, phenols | 3200–3600 | Broad | | C=O | Aldehydes, ketones, carboxylic acids, esters | 1675–1760 | Strong | | C–N | Amines, amides | 3300–3500 | Medium | | N–H | Amines, amides | 3000–3500 | Medium | **Graph Analysis and Matching:** - **Prominent Peaks Detected in IR Spectrum:** - A strong C=O stretch near 1700 cm\(^{-1}\), characteristic of carbonyl compounds. - Possible broad O–H stretch indicating hydrogen-bonded alcohols or acids. - **Probable Functional Group:** - The presence of a strong C=O stretch near the typical range for aldehydes, ketones, acids, and esters suggests a carbonyl
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