Jump to main content
Jump to site search

Issue 13, 2020
Previous Article Next Article

Understanding the properties of dithienylethenes functionalized for supramolecular self-assembly: a molecular modeling study

Author affiliations

Abstract

A dithienylethene (DTE) photochromic compound functionalized by ureidopyrimidinone (UPy) quadruple hydrogen bonding blocks was synthesized by Takeshita and coworkers [Takeshita et al., Chem. Commun., 2005, 761] in order to form a light-responsive supramolecular self-assembling system. In solution, the formation of supramolecular assemblies was only observed for one DTE isomer, namely the closed-form isomer. To rationalize this experimental finding, with the help of Molecular Dynamics (MD) and (time-dependent) DFT calculations, the behaviour of open-form and closed-form monomers, dimers, hexamers and π-stacked dimers in solution is investigated. Our simulations show that, for the open-form oligomers, the progression of the supramolecular assembly is hindered due to (i) the possible formation of a very stable cyclic dimer for the open-form parallel isomer, (ii) the relative flexibility of the open-form oligomers compared to their closed-form counterparts, and (iii) the possible existence of π-stacked dimers that constitute bottlenecks blocking the progression of the supramolecular self-assembly.

Graphical abstract: Understanding the properties of dithienylethenes functionalized for supramolecular self-assembly: a molecular modeling study

Back to tab navigation

Supplementary files

Article information


Submitted
05 Dec 2019
Accepted
02 Mar 2020
First published
09 Mar 2020

Phys. Chem. Chem. Phys., 2020,22, 6942-6952
Article type
Paper

Understanding the properties of dithienylethenes functionalized for supramolecular self-assembly: a molecular modeling study

L. Le Bras, R. Berthin, I. Hamdi, M. Louati, S. Aloïse, M. Takeshita, C. Adamo and A. Perrier, Phys. Chem. Chem. Phys., 2020, 22, 6942
DOI: 10.1039/C9CP06590C

Social activity

Search articles by author

Spotlight

Advertisements