CC BY-NC-ND 4.0 · Organic Materials 2022; 4(03): 73-85
DOI: 10.1055/a-1906-6875
Supramolecular Chemistry
Original Article

Bis-pseudorotaxane Formation of Perylene Bisimide-Linked [60]Fullerene Dumbbell-Like Molecules with [10]Cycloparaphenylene

a   Department of Chemistry and Pharmacy, Friedrich-Alexander-University Erlangen-Nuremberg, Nikolaus-Fiebiger-Straße 10, 91058 Erlangen, Germany
,
Juan Sabin
b   AFFINImeter-Software 4 Science Developments, S. L. Edificio Emprendia s/n Campus Vida, Santiago de Compostela, Spain
c   Biophysics & Interfaces Group, Applied Physics Department, Facultade de Física, Universidade de Santiago de Compostela, 15782 Santiago de Compostela, Spain
,
Harald Maid
a   Department of Chemistry and Pharmacy, Friedrich-Alexander-University Erlangen-Nuremberg, Nikolaus-Fiebiger-Straße 10, 91058 Erlangen, Germany
,
Lea Friedrich
a   Department of Chemistry and Pharmacy, Friedrich-Alexander-University Erlangen-Nuremberg, Nikolaus-Fiebiger-Straße 10, 91058 Erlangen, Germany
,
d   Instituto de Ciencia Molecular (ICMol), Universidad de Valencia, Catedrático José Beltrán 2, Paterna 46980, Spain
,
a   Department of Chemistry and Pharmacy, Friedrich-Alexander-University Erlangen-Nuremberg, Nikolaus-Fiebiger-Straße 10, 91058 Erlangen, Germany
,
a   Department of Chemistry and Pharmacy, Friedrich-Alexander-University Erlangen-Nuremberg, Nikolaus-Fiebiger-Straße 10, 91058 Erlangen, Germany
› Author Affiliations


Abstract

Two [60]fullerene dumbbell-like molecules with a single or double perylene-3,4,9,10-tetracarboxylic acid bisimide (PBI) linker were synthesized to study the structural and photophysical properties in addition to the complex formation with [10]cycloparaphenylene ([10]CPP). Due to their special optical properties, it is possible to describe the complexation using conventional spectroscopic methods such as NMR and fluorescence. However, isothermal titration calorimetry (ITC) was used to complete the analysis of the bis-pseudorotaxane formation by investigating the binding stoichiometries as well as the thermodynamic and kinetic parameters. It was observed that the PBI bridges do not inhibit the complexation with [10]CPP, giving rise to the formation of 1 : 1 and 1 : 2 complexes in o-dichlorobenzene with affinities of around 105 · M−1, similar to the [10]CPP⊃C60 reference system. A novel global analysis by combination of data sets from different techniques allowed us to follow the species distribution very precisely. ITC has proven to be a very powerful method for studying the complexation between fullerene derivatives and strained carbon nanohoops, which provides not only binding affinities and stoichiometries, but also all thermodynamic and kinetic parameters of the bis-pseudorotaxane formation. These results are of significant interest for the investigation of fullerene complexes in supramolecular chemistry and for their future applications in semiconductors and optoelectronics.



Publication History

Received: 14 June 2022

Accepted after revision: 20 July 2022

Accepted Manuscript online:
21 July 2022

Article published online:
19 August 2022

© 2022. The Author(s). This is an open access article published by Thieme under the terms of the Creative Commons Attribution-NonDerivative-NonCommercial License, permitting copying and reproduction so long as the original work is given appropriate credit. Contents may not be used for commercial purposes, or adapted, remixed, transformed or built upon. (https://creativecommons.org/licenses/by-nc-nd/4.0/)

Georg Thieme Verlag KG
Rüdigerstraße 14, 70469 Stuttgart, Germany