Journal
ORGANIC CHEMISTRY FRONTIERS
Volume 8, Issue 14, Pages 3686-3694Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/d1qo00536g
Keywords
-
Categories
Funding
- National Natural Science Foundation of China [11875057, 22076187]
- National Science Fund for Distinguished Young Scholars [21925603]
- Youth Innovation Promotion Association of CAS [2020014]
Ask authors/readers for more resources
Research on synthesizing new coordination-driven polyrotaxanes and regulating their structural diversity contributes to the success of macrocycle-based supramolecular materials. By introducing crown ether macrocycles as a new supramolecular element, a different kind of actinide polyrotaxane with intriguing molecular structures and supramolecular assembly behaviors has been created, expanding the research scope of actinide rotaxane coordination polymers.
Research on synthesizing new coordination-driven polyrotaxanes as well as regulating their structural diversity contributes to the success of macrocycle-based supramolecular materials. In this work, we describe the synthesis of a new kind of actinide-organic polyrotaxane involving crown ether macrocycles for the first time. Crystal structures of two uranyl polyrotaxane compounds, UCER-1 and UCER-2, as well as a third non-polyrotaxane compound UON-1, have been determined, and the formation mechanism of actinide-organic polyrotaxanes is discussed in terms of factors affecting the assembly process. A comparison of the reaction conditions and the corresponding outcomes suggests the necessity of a host-guest pseudorotaxane linker for the successful construction of targeted actinide-organic polyrotaxanes. The coordination of different coordination atoms, especially bromide ions and uranyl ions, is analyzed in detail through theoretical calculations. As an extension of cucurbituril-based uranyl-organic polyrotaxanes, the introduction of crown ether macrocycles as a new supramolecular element brings a different kind of actinide polyrotaxane with intriguing molecular structures and supramolecular assembly behaviours, and will, we believe, expand the research scope of actinide rotaxane coordination polymers.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available