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Triplet energy transfer from xanthone to 1-methylnaphthalene in the faujasite NaY involves a rapid component which occurs in < 100 ns. This process has been examined with laser techniques. The yields of detectable triplet xanthone and 1-methylnaphthalene are interpreted in terms of a statistical model that assumes that the sphere for energy transfer includes the original excitation supercage...
Photolysis of 2-diazo-1,3-indandione leads to ketene formation via the Wolff rearrangement. Ketene 2 hydrates to produce enol 3a that rearranges to 4a. Homophthalic acid 5a is formed by photodecomposition of 4a upon prolonged irradiation.
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