The Journal of Organic Chemistry

Electronic structure of heterospirenes. PE spectroscopic investigations

R Gleiter, J Uschmann

Index: Gleiter, Rolf; Uschmann, Joachim Journal of Organic Chemistry, 1986 , vol. 51, # 3 p. 370 - 380

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Citation Number: 24

Abstract

The synthesis of the heterospirenes 1-9 is described and their He I photoelectron (PE) spectra are recorded. The assignment of the fit PE bands is based on a comparison with fragment molecules and on molecular orbital calculations using semiempirical methods (PPP, MIND0/3). In the case of 1, 2, 4, and 5 strong spirointeraction has been elucidated. For 3 the analysis of the spectrum is hampered due to the strong overlap of bands while for 6 ...