A new mechanically-interlocked [Pd2L4] cage motif by dimerization of two peptide-based lemniscates
| dc.contributor.author | Schulte, Thorben R. | |
| dc.contributor.author | Holstein, Julian J. | |
| dc.contributor.author | Schneider, Laura | |
| dc.contributor.author | Abdulselam Adam, Abdulselam | |
| dc.contributor.author | Haberhauer, Gebhard | |
| dc.contributor.author | Clever, Guido H. | |
| dc.date.accessioned | 2021-07-16T12:57:32Z | |
| dc.date.available | 2021-07-16T12:57:32Z | |
| dc.date.issued | 2020-08-26 | |
| dc.description.abstract | Most metallo-supramolecular assemblies of low nuclearity adopt simple topologies, with bridging ligands spanning neighboring metal centers in a direct fashion. Here we contribute a new structural motif to the family of host compounds with low metal count (two) that consists of a pair of doubly-interlocked, Figure-eight-shaped subunits, also termed “lemniscates”. Each metal is chelated by two chiral bidentate ligands, composed of a peptidic macrocycle that resembles a natural product with two pyridyl-terminated arms. DFT calculation results suggest that dimerization of the mononuclear halves is driven by a combination of 1) Coulomb interaction with a central anion, 2) π-stacking between intertwined ligand arms and 3) dispersive interactions between the structure's compact inner core bedded into an outer shell composed of the cavitand-type macrocycles. The resulting cage-like architecture was characterized by NMR, MS and X-ray structure analyses. This new mechanically bonded system highlights the scope of structural variety accessible in metal-mediated self-assemblies composed of only a few constituents. | en |
| dc.identifier.uri | http://hdl.handle.net/2003/40321 | |
| dc.identifier.uri | http://dx.doi.org/10.17877/DE290R-22196 | |
| dc.language.iso | en | de |
| dc.relation.ispartofseries | Angewandte Chemie International Edition;Vol. 59. 2020, Issue 50, pp 22489-22493 | |
| dc.rights.uri | https://creativecommons.org/licenses/by/4.0/ | |
| dc.subject | Catenane | en |
| dc.subject | Coordination cage | en |
| dc.subject | Chirality | en |
| dc.subject | Mechanical bond | en |
| dc.subject | Supramolecular chemistry | en |
| dc.subject.ddc | 540 | |
| dc.title | A new mechanically-interlocked [Pd2L4] cage motif by dimerization of two peptide-based lemniscates | en |
| dc.type | Text | de |
| dc.type.publicationtype | article | de |
| dcterms.accessRights | open access | |
| eldorado.secondarypublication | true | de |
| eldorado.secondarypublication.primarycitation | Angewandte Chemie International Edition. Vol. 59. 2020, Issue 50, pp 22489-22493 | de |
| eldorado.secondarypublication.primaryidentifier | https://doi.org/10.1002/anie.202010995 | de |