An O—H bond, electronically similar to an O—D bond, has an equivalent spring constant value, k. Use the formula for infrared absorption frequency f given below:
![](https://lightcat-files.s3.amazonaws.com/problem_images/cea8069d97c8cfa5-1676710849688.jpg)
Where k is the spring constant, and μ is the reduced mass, to calculate the IR absorption frequency of an O—D bond. Use the O—H IR frequency value as 3300 cm−1.
If you run an IR spectrum by dissolving the compound in a solvent with D2O as an impurity, state the functional group whose vibrational frequency can be present in the same region as the O—D stretch.