Doubly Cavitand-Capped Porphyrin Capsule by Hydrogen Bonds

作者:Kishimoto Kazuki; Nakamura Munechika; Kobayashi Kenji*
来源:Chemistry - A European Journal, 2016, 22(8): 2629-2633.
DOI:10.1002/chem.201504893

摘要

The components of a 1:2 mixture of meso-tetrakis(4-dodecyl-3,5-dihydroxyphenyl)porphyrin (1) and a bowl-shaped tetrakis(4-pyridylethynyl)cavitand (2) in CDCl3 or C6D6 self-assemble quantitatively into the doubly cavitand-capped porphyrin capsule 212 through eight ArOHNpy hydrogen bonds. Capsule 212 possesses two cavities divided by the porphyrin ring and encapsulates two molecules of 1-acetoxy-3,5-dimethoxybenzene (G) as a guest to form G/G@(212). Remarkable solvent effect was observed, in which the apparent association constant of 212 with G in C6D6 was much greater than that in CDCl3.

  • 出版日期2016-2-18