M. Klaper, T. Linker
Evidence for an Oxygen Anthracene Sandwich Complex
Angew. Chem. Int. Ed. 2013, 52, 11896
DOI: 10.1002/anie.201304768
Oxygen sticks in between acenes: The rate of the photooxygenation of bis(anthryl)alkanes with singlet oxygen shows a maximum for a defined chain length (n=4). In combination with calculations, a bathochromic shift of the UV/Vis absorption for only one endoperoxide and a CT absorption band, this gives considerable evidence for an oxygen anthracene sandwich complex.
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