Unknown

Dataset Information

0

Porphyrin-Polyyne [3]- and [5]Rotaxanes.


ABSTRACT: Porphyrin-polyyne [3]- and [5]rotaxanes have been synthesized by condensing aldehyde-rotaxanes with pyrrole or dipyrromethane. The crystal structure of a [3]rotaxane shows that the macrocycles adopt compact conformations, holding the hexaynes near the porphyrin core, and that the phenanthroline units form intermolecular ?-stacked dimers in the solid. Fluorescence spectra reveal singlet excited-state energy transfer from the threaded hexayne to the porphyrin, from the phenanthroline to the porphyrin, and from the phenanthroline to the hexayne.

SUBMITTER: Kohn DR 

PROVIDER: S-EPMC5354311 | biostudies-literature | 2017 Jan

REPOSITORIES: biostudies-literature

altmetric image

Publications

Porphyrin-Polyyne [3]- and [5]Rotaxanes.

Kohn Daniel R DR   Movsisyan Levon D LD   Thompson Amber L AL   Anderson Harry L HL  

Organic letters 20170105 2


Porphyrin-polyyne [3]- and [5]rotaxanes have been synthesized by condensing aldehyde-rotaxanes with pyrrole or dipyrromethane. The crystal structure of a [3]rotaxane shows that the macrocycles adopt compact conformations, holding the hexaynes near the porphyrin core, and that the phenanthroline units form intermolecular π-stacked dimers in the solid. Fluorescence spectra reveal singlet excited-state energy transfer from the threaded hexayne to the porphyrin, from the phenanthroline to the porphy  ...[more]

Similar Datasets

| S-EPMC4772075 | biostudies-literature
| S-EPMC8596797 | biostudies-literature
| S-EPMC8406139 | biostudies-literature
| S-EPMC5715300 | biostudies-literature
| S-EPMC6071858 | biostudies-literature
2024-04-17 | GSE263829 | GEO
| S-EPMC7154720 | biostudies-literature
| S-EPMC2847772 | biostudies-literature
| S-EPMC7692509 | biostudies-literature
| S-EPMC3607455 | biostudies-literature