On the analysis of diethyl malonate by infrared spectroscopy
Diethyl malonate, which is a common compound in organic chemistry. Infrared spectroscopy is an important means to analyze the structure of organic compounds, and it also plays a key role in the structure analysis of diethyl malonate.

The infrared spectrum of diethyl malonate, its characteristic peaks can reveal a lot of structural information. Vibration absorption peaks related to functional groups can be observed in specific wavenumber intervals. Such as carbonyl (C = O), which often show significant absorption peaks in infrared spectra. Diethyl malonate contains two carbonyl groups. The stretching vibration absorption peak of the carbonyl group can be observed at the wavenumber of about 1735-1750 cm

Furthermore, the stretching vibration of the C-O bond has an absorption peak at the wavenumber of about 1200-1300 cm
. This peak can help confirm the existence of the ester structure in the molecule. The ester structure of diethyl malonate is further confirmed by this absorption peak.

In addition, the stretching vibration of the carbon-hydrogen (C-H) bond in the molecule also has a corresponding absorption peak. The stretching vibration of saturated carbon-hydrogen (C-H) bonds usually has absorption peaks in the range of wavenumber from about 2850 to 2960 cm

In summary, the molecular structure can be accurately analyzed by analyzing the characteristic absorption peaks in the infrared spectrum of diethyl malonate, which provides important structural information basis for organic chemistry research and related applications.