Formation of a Fluorous/Organic Biphasic Supramolecular Octopus Assembly for Enhanced Porphyrin Phosphorescence in Air1. Issue 16 (3rd March 2015)

• Record Type: Journal Article
• Authors: Yang, Chi; Arvapally, Ravi K.; Tekarli, Sammer M.; Salazar, Gustavo A.; Elbjeirami, Oussama; Wang, Xiaoping; Omary, Mohammad A.
• Is Part Of: Angewandte Chemie international edition. Volume 54:Issue 16(2015)
• Page Start: 4842
• Page End: 4846
• Publication Date: 2015-03-03
• Subjects: Chemistry -- Periodicals; 540
• DOI: 10.1002/anie.201411462
• Languages: English
• ISSNs: 1433-7851

Abstract

<abstract abstract-type="main" xml:lang="en"> <title>Abstract</title> <p>The trinuclear triangle‐shaped system [tris{3, 5‐bis(heptafluoropropyl)‐1, 2, 4‐triazolatosilver(I)}] (<bold>1</bold>) and the multi‐armed square‐shaped metalloporphyrin PtOEP or the free porphyrin base H₂OEP serve as excellent octopus hosts (OEP=2, 3, 7, 8, 12, 13, 17, 18‐octaethyl‐21<italic>H</italic>, 23<italic>H</italic>‐porphine). Coupling of the fluorous/organic molecular octopi <bold>1</bold> and H₂OEP or PtOEP by strong quadrupole–quadrupole and metal–π interactions affords the supramolecular assemblies [<bold>1</bold>⋅PtOEP] or [<bold>1</bold>⋅H₂OEP] (<bold>2 a</bold>), which feature nanoscopic cavities surrounding the upper triangular and lower square cores. The fluorous/organic biphasic configuration of [<bold>1</bold>⋅PtOEP] leads to an increase in the phosphorescence of PtOEP under ambient conditions. Guest molecules can be included in the biphasic double‐octopus assembly in three different site‐selective modes.</p> </abstract>