In the original article, there were mistakes in some of the figures as published. The corrected figures are below.
In Figure 1F, the cyclodextrin was missing from the repeating unit.
FIGURE 1
In Figures 5D,E, the organic substituents on the lower porphyrin ring were incorrect.
FIGURE 5
In Figure 6, the chelating units on the thread consisted of a 4,7-phenanthroline and two pyridines rather than two 2,2′-bipyridines. In addition, the zinc coordinates to triazole in Figure 6B on both the top and bottom thread, not a pyridine nitrogen. Ar labels were also provided.
FIGURE 6
In Figure 13A, the methyl groups on the exterior pyridines were in the wrong position. The number of methylene carbons was fixed.
FIGURE 13
In Figure 14D, the +2e– and –2e– were going in the wrong direction. The oxidized tetrathiafulvalene structure had a bridging double bond instead of a single bond.
FIGURE 14
The H2O and DMSO solvent labels were flipped in Figures 15C,D.
FIGURE 15
In the original article there was an error in the section Translating Molecular Designs Into Bulk Materials, page 18, last paragraph. The correct description of Figure 4 is as follows:
“Ke showed that DMSO causes the 3D printed object to smear (Figure 4D→Figure 4B), and water recovers the original shape (Figure 4B→Figure 4D).”
The authors apologize for these errors and state that this does not change the scientific conclusions of the article in any way. The original article has been updated.
Statements
Publisher’s note
All claims expressed in this article are solely those of the authors and do not necessarily represent those of their affiliated organizations, or those of the publisher, the editors and the reviewers. Any product that may be evaluated in this article, or claim that may be made by its manufacturer, is not guaranteed or endorsed by the publisher.
Summary
Keywords
conformations, flexible, host-guest chemistry, macrocycle, polyrotaxane, pseudorotaxane, rigid, rotaxane
Citation
Fadler RE and Flood AH (2022) Corrigendum: Rigidity and Flexibility in Rotaxanes and Their Relatives; On Being Stubborn and Easy-Going. Front. Chem. 10:953052. doi: 10.3389/fchem.2022.953052
Received
25 May 2022
Accepted
02 June 2022
Published
04 August 2022
Volume
10 - 2022
Edited and reviewed by
Tsuyoshi Minami, The University of Tokyo, Japan
Updates
Copyright
© 2022 Fadler and Flood.
This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.
*Correspondence: Amar H. Flood, aflood@indiana.edu
This article was submitted to Supramolecular Chemistry, a section of the journal Frontiers in Chemistry
Disclaimer
All claims expressed in this article are solely those of the authors and do not necessarily represent those of their affiliated organizations, or those of the publisher, the editors and the reviewers. Any product that may be evaluated in this article or claim that may be made by its manufacturer is not guaranteed or endorsed by the publisher.