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The Photoelectron Spectra of 4, 13-Diaza- and 4, 16-Diaza [24] (1,2,4,5)cyclophanes

✍ Scribed by Yang Zhong-zhi; Edgar Heilbronner; Hee Chol Kang; Virgil Boekelheide

Publisher
John Wiley and Sons
Year
1981
Tongue
German
Weight
340 KB
Volume
64
Category
Article
ISSN
0018-019X

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✦ Synopsis

Abstract

A tentative assignment is proposed for the He (I__a__) photoelectron (PE.) spectra of the title compounds. It is based on the assumption that the first four π‐bands occupy the same position in both spectra, as suggested by a qualitative correlation with the PE. spectrum of 2~4~cyclophane and by a previously proposed molecular orbital model. If this is accepted, then the bands due to electron ejection from the lone‐pair orbitals are split by roughly 0.8 eV in the case of the 4, 13‐diaza isomer, whereas no split can be detected in the case of the 4, 16‐diaza isomer.

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