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C3H11N LOD 3471 & 3390 ~3100-3020 & 1616 ~2965-2860 4D00 1000 MAVENUNBERIal 3H, triplet |2H, doublet 2H, 2H, doublet quartet 2H 10 9 8. 7 6 4 3 1 ppm 128 115 28 16 144 134 200 180 160 140 120 100 80 60 40 20 ppm

C3H11N LOD 3471 & 3390 ~3100-3020 & 1616 ~2965-2860 4D00 1000 MAVENUNBERIal 3H, triplet |2H, doublet 2H, 2H, doublet quartet 2H 10 9 8. 7 6 4 3 1 ppm 128 115 28 16 144 134 200 180 160 140 120 100 80 60 40 20 ppm

Chemistry
Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
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Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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DRAW THE Structure of Charged Fragment OF THE 2 SAMPLE GIVEN ABOVE

### Molecular Analysis of C₈H₁₁N This document provides a comprehensive analysis of the compound C₈H₁₁N, featuring infrared (IR) spectroscopy, proton nuclear magnetic resonance (¹H NMR) spectroscopy, and carbon-13 nuclear magnetic resonance (¹³C NMR) spectroscopy data. #### 1. Infrared (IR) Spectroscopy The IR spectrum displays the following notable peaks: - **3471 & 3390 cm⁻¹**: Indicative of N-H stretching, typically seen with amines. - **~3100-3020 cm⁻¹**: Associated with aromatic C-H stretching. - **~2965-2860 cm⁻¹**: Suggestive of aliphatic C-H stretching. - **1616 cm⁻¹**: Corresponds to C=C stretching, common in aromatic compounds. #### 2. Proton NMR (¹H NMR) Spectroscopy The ¹H NMR spectrum reveals the following signals: - **2H, doublet** at approximately 7.0 ppm: Likely aromatic hydrogens. - **2H, doublet** at approximately 6.8 ppm: Likely aromatic hydrogens. - **2H** at approximately 3.5 ppm. - **2H, quartet** at approximately 1.8 ppm: Possibly aliphatic hydrogens. - **3H, triplet** at approximately 1.0 ppm: Likely indicative of a methyl group adjacent to methylene groups. #### 3. Carbon-13 NMR (¹³C NMR) Spectroscopy The ¹³C NMR spectrum exhibits several peaks, corresponding to distinct carbon environments: - **144 ppm**: Aromatic carbon. - **134 ppm**: Aromatic carbon. - **128 ppm**: Aromatic carbon. - **115 ppm**: Aromatic carbon. - **28 ppm**: Aliphatic carbon, likely part of a methylene group. - **16 ppm**: Aliphatic carbon, possibly a methyl group. Each of these spectral data provides insight into the molecular structure of C₈H₁₁N, showcasing features characteristic of compounds containing both aromatic and amine functionalities.
Transcribed Image Text:### Molecular Analysis of C₈H₁₁N This document provides a comprehensive analysis of the compound C₈H₁₁N, featuring infrared (IR) spectroscopy, proton nuclear magnetic resonance (¹H NMR) spectroscopy, and carbon-13 nuclear magnetic resonance (¹³C NMR) spectroscopy data. #### 1. Infrared (IR) Spectroscopy The IR spectrum displays the following notable peaks: - **3471 & 3390 cm⁻¹**: Indicative of N-H stretching, typically seen with amines. - **~3100-3020 cm⁻¹**: Associated with aromatic C-H stretching. - **~2965-2860 cm⁻¹**: Suggestive of aliphatic C-H stretching. - **1616 cm⁻¹**: Corresponds to C=C stretching, common in aromatic compounds. #### 2. Proton NMR (¹H NMR) Spectroscopy The ¹H NMR spectrum reveals the following signals: - **2H, doublet** at approximately 7.0 ppm: Likely aromatic hydrogens. - **2H, doublet** at approximately 6.8 ppm: Likely aromatic hydrogens. - **2H** at approximately 3.5 ppm. - **2H, quartet** at approximately 1.8 ppm: Possibly aliphatic hydrogens. - **3H, triplet** at approximately 1.0 ppm: Likely indicative of a methyl group adjacent to methylene groups. #### 3. Carbon-13 NMR (¹³C NMR) Spectroscopy The ¹³C NMR spectrum exhibits several peaks, corresponding to distinct carbon environments: - **144 ppm**: Aromatic carbon. - **134 ppm**: Aromatic carbon. - **128 ppm**: Aromatic carbon. - **115 ppm**: Aromatic carbon. - **28 ppm**: Aliphatic carbon, likely part of a methylene group. - **16 ppm**: Aliphatic carbon, possibly a methyl group. Each of these spectral data provides insight into the molecular structure of C₈H₁₁N, showcasing features characteristic of compounds containing both aromatic and amine functionalities.
**Transcription and Analysis of Spectroscopy Data for C₉H₁₀O₂** ### Molecular Formula: C₉H₁₀O₂ --- ### Infrared (IR) Spectrum: The IR spectrum shows the following characteristic absorption peaks: - **3091-3035 cm⁻¹**: Indicates the presence of C-H stretching vibrations, likely from aromatic hydrogen atoms. - **2966-2895 cm⁻¹**: Suggests C-H stretching from methyl or methylene groups. - **1743 cm⁻¹**: Corresponds to the C=O stretching, indicative of a carbonyl group. - **1608 cm⁻¹**: Represents aromatic C=C stretching. --- ### Proton Nuclear Magnetic Resonance (¹H NMR) Spectrum: The ¹H NMR spectrum exhibits several peaks, each corresponding to a specific hydrogen environment in the molecule: - **7.0-8.0 ppm**: A multiplet corresponding to 5 hydrogen atoms, typical of aromatic protons. - **2.0-3.0 ppm**: A singlet for 3 hydrogen atoms, suggesting a methyl group attached to a non-protonated carbon. - **4.0-5.0 ppm**: A singlet representing 2 hydrogen atoms, possibly indicating methylene protons adjacent to an electronegative atom or group. --- ### Carbon-13 Nuclear Magnetic Resonance (¹³C NMR) Spectrum: The ¹³C NMR spectrum displays peaks for distinct carbon environments: - **171 ppm**: Indicative of a carbonyl carbon. - **136 ppm**: May correspond to a quaternary carbon in the aromatic ring. - **129, 128, 127 ppm**: These are characteristic of aromatic carbons. - **66 ppm**: Likely due to carbon that is part of a functional group, possibly an ester. - **21 ppm**: Typical of a methyl carbon. --- This data provides insight into the molecular structure and functional groups present in C₉H₁₀O₂, useful for further identification and analysis of the compound.
Transcribed Image Text:**Transcription and Analysis of Spectroscopy Data for C₉H₁₀O₂** ### Molecular Formula: C₉H₁₀O₂ --- ### Infrared (IR) Spectrum: The IR spectrum shows the following characteristic absorption peaks: - **3091-3035 cm⁻¹**: Indicates the presence of C-H stretching vibrations, likely from aromatic hydrogen atoms. - **2966-2895 cm⁻¹**: Suggests C-H stretching from methyl or methylene groups. - **1743 cm⁻¹**: Corresponds to the C=O stretching, indicative of a carbonyl group. - **1608 cm⁻¹**: Represents aromatic C=C stretching. --- ### Proton Nuclear Magnetic Resonance (¹H NMR) Spectrum: The ¹H NMR spectrum exhibits several peaks, each corresponding to a specific hydrogen environment in the molecule: - **7.0-8.0 ppm**: A multiplet corresponding to 5 hydrogen atoms, typical of aromatic protons. - **2.0-3.0 ppm**: A singlet for 3 hydrogen atoms, suggesting a methyl group attached to a non-protonated carbon. - **4.0-5.0 ppm**: A singlet representing 2 hydrogen atoms, possibly indicating methylene protons adjacent to an electronegative atom or group. --- ### Carbon-13 Nuclear Magnetic Resonance (¹³C NMR) Spectrum: The ¹³C NMR spectrum displays peaks for distinct carbon environments: - **171 ppm**: Indicative of a carbonyl carbon. - **136 ppm**: May correspond to a quaternary carbon in the aromatic ring. - **129, 128, 127 ppm**: These are characteristic of aromatic carbons. - **66 ppm**: Likely due to carbon that is part of a functional group, possibly an ester. - **21 ppm**: Typical of a methyl carbon. --- This data provides insight into the molecular structure and functional groups present in C₉H₁₀O₂, useful for further identification and analysis of the compound.
Expert Solution
Step 1

C8H11N: First calculate DBE (4). DBE= 4 indicates benzene ring.

IR: 3471 cm-1, 3390 cm-1 two peaks k N-H stretch. amine functional group.

1H NMR: fron nmr benzene ring is para substituted. Ethyl group is present (quartet, triplet).

C9H10O2 : DBE = 5 (benzene ring with carbonyl).

IR: 1743 cm-1 carbonyl stretch of ester. 

NMR: From NMR , the compound is mono substituted benzene.

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