Analysis of Infrared Peaks of Ethyl Acetate
Ethyl Acetate The mystery of the infrared peak (Ir Peaks) of ethyl acetate should be investigated in detail. Ethyl acetate, with a simple structural formula of $CH_3COOCH_2CH_3 $, is composed of methyl, acetyl, methylene and ethoxy groups.

In the infrared spectrum, different groups have specific vibration frequencies, so there are unique infrared peaks. Methyl ($- CH_3 $), its symmetrical and asymmetrical stretching vibration, usually at about 2960 dollars cm ^ {-1} $and 2870 dollars cm ^ {-1} $. This is due to the stretching motion of carbon-hydrogen bonds, which absorbs infrared radiation.

In acetyl ($- COCH_3 $), the stretching vibration peak of carbonyl ($C = O $) is significant, about 1740 dollars - 1750 cm ^ {-1} $. The double bond of carbonyl has strong polarity, the dipole moment changes greatly during vibration, and the infrared light absorption is strong. This peak is an important sign of the infrared spectrum of ethyl acetate.

Methylene ($- CH_2 - $), its stretching vibration peaks are about 2930 cm dollars ^ {-1} $and 2850 dollars cm ^ {-1} $, and the bending vibration peak is about 1465 dollars cm ^ {-1} $. In ethoxy ($- OCH_2CH_3 $), the stretching vibration peak of carbon-oxygen single bond ($C - O $) is in the range of about 1050 dollars - 1300 cm ^ {-1} $.

Looking at the infrared peak of ethyl acetate is like observing the rhythm of the microscopic world. The peaks confirm each other and reveal the molecular structure information. With the accurate analysis of its infrared peak, it can be used for qualitative and quantitative analysis of substances, and is of great significance in many fields such as chemistry, chemical industry, and materials.