Issue 13, 2014

Azaporphine guest–host complexes in solution and gas-phase: evidence for partially filled nanoprisms and exchange reactions

Abstract

Supramolecular guest–host complexes comprising various azaporphines stacked in a coordination nanoprism consisting of tris(4-pyridyl)triazines as panels, 1,4-bis(pyridyl)benzenes as pillars and (en)Pd as hinges were synthesized according to the procedure of Fujita and coworkers and characterized as ions in the gas-phase by high-resolution electrospray ionization mass spectrometry and collision induced dissociation as well as in solution by analytical ultracentrifugation. Apart from fully filled nanoprisms we have also prepared and observed partially filled as well as empty congeners in aqueous solutions. Upon mixing room temperature solutions of two types of nanoprisms, we observe that azaporphine guest exchange reactions occur on a timescale of minutes, indicating that the formation of the guest–host complexes is reversible.

Graphical abstract: Azaporphine guest–host complexes in solution and gas-phase: evidence for partially filled nanoprisms and exchange reactions

Supplementary files

Article information

Article type
Paper
Submitted
28 Dec 2013
Accepted
07 Feb 2014
First published
07 Feb 2014
This article is Open Access
Creative Commons BY license

Phys. Chem. Chem. Phys., 2014,16, 6225-6232

Azaporphine guest–host complexes in solution and gas-phase: evidence for partially filled nanoprisms and exchange reactions

P. Weis, U. Schwarz, F. Hennrich, D. Wagner, S. Bräse and M. Kappes, Phys. Chem. Chem. Phys., 2014, 16, 6225 DOI: 10.1039/C3CP55486D

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