Chapter 12Electrochemically Driven Supramolecular Devices

2015 ◽  
pp. 453-500
2003 ◽  
Vol 9 (1) ◽  
pp. 291-299 ◽  
Author(s):  
Mario Ruben ◽  
Esther Breuning ◽  
Mihail Barboiu ◽  
Jean-Paul Gisselbrecht ◽  
Jean-Marie Lehn

Molecules ◽  
2020 ◽  
Vol 25 (7) ◽  
pp. 1733 ◽  
Author(s):  
Ana Miljkovic ◽  
Sonia La Cognata ◽  
Greta Bergamaschi ◽  
Mauro Freccero ◽  
Antonio Poggi ◽  
...  

In this work, we report the synthesis of a new bis(tris(2-aminoethyl)amine) azacryptand L with triphenyl spacers. The binding properties of its dicopper complex for aromatic dicarboxylate anions (as TBA salts) were investigated, with the aim to obtain potential building blocks for supramolecular structures like rotaxanes and pseudo-rotaxanes. As expected, UV-Vis and emission studies of [Cu2L]4+ in water/acetonitrile mixture (pH = 7) showed a high affinity for biphenyl-4,4′-dicarboxylate (dfc2−), with a binding constant of 5.46 log units, due to the best match of the anion bite with the Cu(II)-Cu(II) distance in the cage’s cavity. Compared to other similar bistren cages, the difference of the affinity of [Cu2L]4+ for the tested anions was not so pronounced: conformational changes of L seem to promote a good interaction with both long (e.g., dfc2−) and short anions (e.g., terephthalate). The good affinity of [Cu2L]4+ for these dicarboxylates, together with hydrophobic interactions within the cage’s cavity, may promote the self-assembly of a stable 1:1 complex in water mixture. These results represent a good starting point for the application of these molecular systems as building units for the design of new supramolecular architectures based on non-covalent interactions, which could be of interest in all fields related to supramolecular devices.


2014 ◽  
Vol 38 (11) ◽  
pp. 5122-5128 ◽  
Author(s):  
Valentina Abet ◽  
Raphaël Rodriguez

Guanosine (G) and isoguanosine (isoG) derivatives can self-assemble, yielding supramolecules that have found broad applications in diverse fields.


2012 ◽  
Vol 8 ◽  
pp. 539-550 ◽  
Author(s):  
Caterina Fraschetti ◽  
Matthias C Letzel ◽  
Antonello Filippi ◽  
Maurizio Speranza ◽  
Jochen Mattay

This review describes the state-of-art in the field of the gas-phase reactivity of diastereomeric complexes formed between a chiral artificial receptor and a biologically active molecule. The presented experimental approach is a ligand-displacement reaction carried out in a nano ESI-FT-ICR instrument, supported by a thermodynamic MS-study and molecular-mechanics and molecular-dynamics (MM/MD) computational techniques. The noncovalent ion–molecule complexes are ideal for the study of chiral recognition in the absence of complicating solvent and counterion effects.


2006 ◽  
Vol 2006 (19) ◽  
pp. 3878-3892 ◽  
Author(s):  
Anne Petitjean ◽  
Fausto Puntoriero ◽  
Sebastiano Campagna ◽  
Alberto Juris ◽  
Jean-Marie Lehn

2019 ◽  
Vol 25 (17) ◽  
Author(s):  
Markus Albrecht ◽  
Xiaofei Chen ◽  
David Van Craen

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