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A solid-state [2 + 2] photodimerization involving coordination of Ag(I) ions to 2-pyridyl groups
Journal article   Peer reviewed

A solid-state [2 + 2] photodimerization involving coordination of Ag(I) ions to 2-pyridyl groups

Gonzalo Campillo-Alvarado, Katerina Aslan, Michael A Sinnwell, Eric W Reinheimer, S. V. Santhana Mariappan, Leonard R MacGillivray and Ryan H Groeneman
Journal of coordination chemistry, Vol.71(16-18), pp.2875-2883
09/17/2018
DOI: 10.1080/00958972.2018.1501480
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https://figshare.com/articles/journal_contribution/A_solid-state_2_2_photodimerization_involving_coordination_of_Ag_I_ions_to_2-pyridyl_groups/6876119View
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Abstract

Photoreactive Ag(I) complexes of p-toluenesulfonate ions with the unsymmetrical alkene trans-1-(4-acetoxyphenyl)-2-(2-pyridyl)ethylene 1 is reported. The crystal [Ag(p-tol)(1)2]•(H2O) (p-tol = p-toluenesulfonate) undergoes a [2 + 2] photocycloaddition reaction in quantitative yield to afford the head-to-tail (ht) photoproduct rctt-1,3-bis(2-pyridyl)-2,4-bis(4-acetoxyphenyl)cyclobutane 2 regioselectively. The aromatic rings of the olefin participate in face-to-face π–π interactions and adopt an anti-conformation to position the carbon–carbon double bonds (C = C) in a suitable orientation to undergo photoreaction between neighboring complexes.
 [2 + 2] Cycloaddition reactions crystal engineering head-to-tail photoproduct silver organosulfonate solid-state reactivity

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