Langer, P;
Yang, L;
Pfeiffer, CR;
Lewis, W;
Champness, NR;
(2019)
Restricting shuttling in bis(imidazolium)…pillar[5]arene rotaxanes using metal coordination.
Dalton Transactions
, 48
(1)
pp. 58-64.
10.1039/c8dt04096f.
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Abstract
Metal coordination to a series of bis (imidazolium)…pillar[5]arene [2]rotaxanes through the formation of metal-carbene bonds facilitates a new strategy to restrict the shuttling motion in [2]rotaxanes. Whereas the pillar[5]arene macrocycle rapidly shuttles along the full length of the bis (imidazolium) rod for the parent [2]rotaxane, Ag(i) coordination to the imidazolium groups through the formation of N-heterocyclic carbenes leads to restricted motion, effectively confining the shuttling motion of the [2]rotaxane. The Ag(i) coordinated [2]rotaxanes can be reacted further, either removing the Ag-carbene species to recreate the parent [2]rotaxane, or reaction with more bulky Pd(ii) species to further restrict the shuttling motion through steric inhibition.
| Type: | Article |
|---|---|
| Title: | Restricting shuttling in bis(imidazolium)…pillar[5]arene rotaxanes using metal coordination |
| Location: | England |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1039/c8dt04096f |
| Publisher version: | https://doi.org/10.1039/c8dt04096f |
| Language: | English |
| Additional information: | This version is the author accepted manuscript. For information on re-use, please refer to the publisher’s terms and conditions. |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science |
| URI: | https://discovery.ucl.ac.uk/id/eprint/10062507 |
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