Abstract
In recent years photoelectron spectroscopy has evolved into a powerful technique in organic chemistry. After a brief introduction of photoelectron spectroscopy (PES), this article deals with other types of electron spectroscopy such as EIS, AES, PIS and INS, and then gives representative examples of the application of electron spectroscopy to organic chemistry. In particular, the electronic states and structures of organic molecules, the chemical reaction processes and also solid surface properties that can be proved by electron spectroscopy are discussed in the light of recent progress.
