1. a) For each of the following compounds, draw a structural isomer that changes the functional groups in the molecule. b) Name all the functional groups in each major absorbances you would expect to find in the IR spectrum for each isomer, and highlight how you could use IR to tell them apart. isomer. c) Indicate the

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**Educational Website Transcription:**

### Understanding Functional Groups with IR Spectroscopy

1. **Objective:**
   - For each of the following compounds, identify the functional groups present in the molecule.

2. **Instructions:**
   - **a)** For each compound, identify and name all the functional groups.
   - **b)** Consider the major absorbances you would expect to find in the IR spectrum for each isomer.
   - **c)** Draw a structural isomer for each compound that changes the functional groups.

### Compounds and Functional Groups:

- **Compound 1:**
  - **Functional Groups:** Alcohol, Ketone
  - **Structure Highlights:** This compound contains an alcohol group (OH) and a ketone functional group.

- **Compound 2:**
  - **Functional Groups:** Nitrile, Arene
  - **Structure Highlights:** The compound features a nitrile group (CN) and an aromatic ring (arene).

- **Compound 3:**
  - **Functional Groups:** Alkene, Ether
  - **Structure Highlights:** This compound is characterized by the presence of an alkene (C=C) and an ether (C-O-C) group.

- **Compound 4:**
  - **Functional Groups:** Amide
  - **Structure Highlights:** This compound includes an amide group (CONH₂).

### Graphical Analysis:

The document shows four chemical structures with labeled functional groups. These diagrams aid in identifying key characteristics that manifest in IR spectroscopy, valuable for understanding structural differences and the presence of specific functional groups in organic molecules.
Transcribed Image Text:**Educational Website Transcription:** ### Understanding Functional Groups with IR Spectroscopy 1. **Objective:** - For each of the following compounds, identify the functional groups present in the molecule. 2. **Instructions:** - **a)** For each compound, identify and name all the functional groups. - **b)** Consider the major absorbances you would expect to find in the IR spectrum for each isomer. - **c)** Draw a structural isomer for each compound that changes the functional groups. ### Compounds and Functional Groups: - **Compound 1:** - **Functional Groups:** Alcohol, Ketone - **Structure Highlights:** This compound contains an alcohol group (OH) and a ketone functional group. - **Compound 2:** - **Functional Groups:** Nitrile, Arene - **Structure Highlights:** The compound features a nitrile group (CN) and an aromatic ring (arene). - **Compound 3:** - **Functional Groups:** Alkene, Ether - **Structure Highlights:** This compound is characterized by the presence of an alkene (C=C) and an ether (C-O-C) group. - **Compound 4:** - **Functional Groups:** Amide - **Structure Highlights:** This compound includes an amide group (CONH₂). ### Graphical Analysis: The document shows four chemical structures with labeled functional groups. These diagrams aid in identifying key characteristics that manifest in IR spectroscopy, valuable for understanding structural differences and the presence of specific functional groups in organic molecules.
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