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Host-Guest Chemistry Aids and Abets a Stereospecific Photodimerization in the Solid State



Host-Guest Chemistry Aids and Abets a Stereospecific Photodimerization in the Solid State



Angewandte Chemie 40(22): 4256-4261



A bis(dialkylammonium ion)-substituted stilbene derivative cocrystallizes with bisparaphenylene[34]crown-10 to form, in the solid state, a 2:2 host-guest complex wherein the stilbene double bonds are aligned with a relative geometry suitable for a stereospecific photochemical [2+2] cycloaddition. When irradiated with white light, this crystalline complex forms a single diastereoisomer of the corresponding cyclobutane derivative, the stereochemistry of which has been determined unambiguously in the solid state by X-ray crystallography to be syn-anti-syn.

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Accession: 065200893

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PMID: 29712105

DOI: 10.1002/1521-3773(20011119)40:22<4256::aid-anie4256>3.0.co;2-s


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