Photoelectron Spectra of Unsaturated Oxides. I. 1,4-Dioxin and related systems

The He (Iα) photoelectron spectra of the four unsaturated oxides 3,4‐dihydropyran (6), γ‐pyran (7), 2, 3‐dihydro‐1, 4‐dioxin (9) and 1, 4‐dioxin (10) are reported and analysed. Band assignments are based on ab‐initio calculations, using the STO‐3G basis set. The proposed orbital sequences (with refe...

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Veröffentlicht in:Helvetica chimica acta 1978-06, Vol.61 (4), p.1388-1398
Hauptverfasser: Bloch, Martin, Brogli, Franz, Heilbronner, Edgar, Jones, Taylor B., Prinzbach, Horst, Schweikert, Otto
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container_end_page 1398
container_issue 4
container_start_page 1388
container_title Helvetica chimica acta
container_volume 61
creator Bloch, Martin
Brogli, Franz
Heilbronner, Edgar
Jones, Taylor B.
Prinzbach, Horst
Schweikert, Otto
description The He (Iα) photoelectron spectra of the four unsaturated oxides 3,4‐dihydropyran (6), γ‐pyran (7), 2, 3‐dihydro‐1, 4‐dioxin (9) and 1, 4‐dioxin (10) are reported and analysed. Band assignments are based on ab‐initio calculations, using the STO‐3G basis set. The proposed orbital sequences (with reference to the coordinate systems given in Table 1) are, for the top three orbitals: 6, π, nσ, nπ; 7, 3b1(π), 1a2(π), 11a1(σ); 9, 11b(π), 12a(σ), 11a(π); 10, 2b3u(π), 1b1g(π), 6ag(σ). Finally the (almost) localized π‐orbitals have been computed by the Foster‐Boys localization procedure.
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title Photoelectron Spectra of Unsaturated Oxides. I. 1,4-Dioxin and related systems
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