Match each of the four IR spectra to one of the given compounds. [One of the compounds does not match a spectrum.]
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Verified step by step guidance

1. Begin by understanding the basic principles of IR spectroscopy. Infrared (IR) spectroscopy is a technique used to identify functional groups in organic compounds based on the absorption of infrared light at specific wavelengths.
2. Examine the IR spectra provided. Look for key absorption peaks that correspond to specific functional groups. Common peaks include: O-H stretch (around 3200-3600 cm^-1), C=O stretch (around 1700 cm^-1), C-H stretch (around 2800-3000 cm^-1), and N-H stretch (around 3300-3500 cm^-1).
3. Identify the functional groups present in each of the given compounds. For example, if a compound contains a carbonyl group, you should expect a peak around 1700 cm^-1 in its IR spectrum.
4. Match the observed peaks in each IR spectrum to the functional groups identified in the compounds. This involves comparing the characteristic absorption frequencies of the functional groups in the compounds to the peaks in the spectra.
5. Determine which compound does not match any of the IR spectra. This compound will have functional groups that do not correspond to the peaks observed in any of the spectra provided.

Key Concepts

Infrared Spectroscopy

Infrared spectroscopy is a technique used to identify functional groups in organic compounds by measuring the absorption of infrared light. Different bonds absorb specific frequencies, creating a spectrum that acts as a molecular fingerprint. Understanding IR spectra involves recognizing characteristic peaks corresponding to various functional groups.

Functional Groups

Functional groups are specific groups of atoms within molecules that are responsible for the characteristic chemical reactions of those molecules. In IR spectroscopy, each functional group has a unique absorption pattern, allowing chemists to identify them based on the presence and position of peaks in the spectrum.

Spectral Analysis

Spectral analysis involves interpreting the peaks and patterns in an IR spectrum to deduce the structure of a compound. This requires knowledge of typical absorption ranges for different functional groups and the ability to match these with the spectra provided. It is crucial to compare the spectra with known reference data to accurately identify the compound.