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5544304290
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Two additional transition states, inward and outward, in which the formyl group of the ketenes will be trans, are also expected.
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85087194089
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note
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36 This would also predict a bent geometry.
-
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60
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5544259651
-
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note
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It may be that 18, although the thermal barrier is significant, isomerizes with a high quantum yield to 2 and so is not observed in the matrix.
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5544295960
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note
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Efforts are underway to explore this question in more detail
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