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Oxygen-contact charge transfer complexes in organic bicomponent systems
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作者 Junmin Zhu Zhengping Liu +1 位作者 Weixiao Cao Xinde Feng 《Chinese Science Bulletin》 SCIE EI CAS 1998年第21期1798-1802,共5页
The O-2-CCT absorption spectra of bicomponent systems were measured. The influences of various organic compounds as well as the component concentration on the O-2-CCT formation ability were investigated. The results s... The O-2-CCT absorption spectra of bicomponent systems were measured. The influences of various organic compounds as well as the component concentration on the O-2-CCT formation ability were investigated. The results show that if the difference of O-2-CCT formation ability between the two components is rather large, such as the benzene/isopropyl ether system, only the O-2-CCT absorption of benzene appears, which arises from its higher O-2-CCT formation ability. If the difference of O-2-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 O-2-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 O-2-CCT absorption. If the difference of O-2-CCT formation ability is in medium compared with the two cases above, such as the dioxane/ethanol system, there are two kinds of O-2-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 of O-2-CCT absorption. 展开更多
关键词 CoNTACT CHARGE transfer complex (CCT) o-2-cct formation ability o-2-cct dynamic EQUILIBRIUM absorption spectra.
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