Conformation-specific photochemistry in the solid state |
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Authors: | Sara Ariel Stephen Evans Christine Hwang Jack Jay John R Scheffer James Trotter Yiu-Fai Wong |
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Institution: | Department of Chemistry, University of British Columbia Vancouver, Canada V6T 1Y6 |
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Abstract: | The unsymmetrical ene-dione exists in solution as a mixture of two conformational isomers, A and B, in rapid equilibrium. Irradiation of in this medium leads to four products, two from each conformer. In the solid state, however, compound adopts a single conformation (A), and photolysis of crystals of leads to a single product. The formation of one rather than two photoproducts in this instance is attributed to a unique solid state steric effect, termed steric compression. |
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