Die ESR.‐Spektren der Radikal‐Ionen des trans‐15, 16‐Dimethyldihydropyrens und seines Semichinons

Helvetica Chimica Acta - Tập 47 Số 5 - Trang 1123-1137 - 1964
Fabian Gerson1,2, E. Heilbronner1,2, V. Boekelheide3,4
1Laboratorium für Organische Chemie der Eidg. Technischen Hochschule, Zürich
2Laboratorium für Organische Chemie, Eidg. Technische Hochschule, Zürich.
3Department of Chemistry, University of Oregon, Eugene, Oregon
4Dept. of Chemistry University of Oregon, Eugene

Tóm tắt

Abstract

The observed spin densities for the radical cation and anion of trans‐15,16‐di‐methyl‐dihydropyrene (I) are in good agreement with MO predictions based on unrestrained delocalisation in the peripheral 14‐membered π‐electron system. The symmetry of the MO's occupied by the unpaired electron in the two cases suggests that the central «butane» unit acts as an electron releasing group in the radical cation and as an electron accepting group in the radical anion.

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Tài liệu tham khảo

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Helvetica Chimica Acta

Tập 47 Số 5

1123-1137

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