Oxygen-contact charge transfer complexes in organic bicomponent systems

Autor: Weixiao Cao, Zhengping Liu, Xinde Feng, Junmin Zhu
Rok vydání: 1998
Předmět:
Zdroj: Chinese Science Bulletin. 43:1798-1802
ISSN: 1861-9541
1001-6538
DOI: 10.1007/bf02883375
Popis: The O2-CCT absorption spectra of bicomponent systems were measured. The influences of various organic compounds as well as the component concentration on the O2-CCT formation ability were investigated. The results show that if the difference of O2-CCT formation ability between the two components is rather large, such as the benzene/ isopropyl ether system, only the O2-CCT absorption of benzene appears, which arises from its higher O2-CCT formation ability. If the difference of O2-CCT formation ability is small, such as the isopropyl ether/ethanol system and the dioxane/isopropyl ether system, it is rather easy to form a dynamic equilibrium of two O2-CCT between the two components, then only one absorption peak appears in the whole concentration range as a result of the repeated addition of the two kinds of O2-CCT absorption. If the difference of O2-CCT formation ability is in medium compared with the two cases above, such as the dioxane/ethanol system, there are two kinds of2-CCT absorption of dioxane and ethanol in the same system in the form of an equilibrium, then two absorption peaks can be detected in the middle concentration range as a result of the repeated addition of the two kinds of2-CCT absorption.
Databáze: OpenAIRE