On the boiling point of E-4-bromo cinnamic acid
The boiling point of E-4-bromo cinnamic acid needs to be investigated in detail. E-4-bromo cinnamic acid has a unique chemical structure. Its intermolecular forces, such as hydrogen bonds, van der Waals forces, etc., have a great influence on the boiling point.

Looking at its structure, the existence of bromine atoms changes the polarity of molecules, which in turn affects the intermolecular forces. Bromine has strong electronegativity, causing uneven distribution of molecular charges, enhancing intermolecular interactions, and the boiling point changes accordingly.

Furthermore, the spatial configuration of molecules is also related to the boiling point. The spatial structure of E-4-bromo cinnamic acid determines the degree of intermolecular arrangement. The tight arrangement increases the intermolecular force and the boiling point.

To measure its boiling point, the experimental method is very important. In a suitable experimental device, use precise temperature control means to observe the critical temperature of its transition from liquid to gas. However, during the experiment, factors such as air pressure cannot be ignored. The change of air pressure is directly related to the value of boiling point.

In summary, to explore the boiling point of E-4-bromo cinnamic acid, it is necessary to comprehensively consider the structure, intermolecular force and experimental conditions in order to obtain an accurate understanding.