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 | Adam, Abdulselam | |
| dc.contributor.author | Haberhauer, Gebhard | |
| dc.contributor.author | Clever, Guido H. | |
| dc.date.accessioned | 2020-10-27T07:39:07Z | |
| dc.date.available | 2020-10-27T07:39:07Z | |
| 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/2003/39792 | |
| dc.identifier.uri | http://dx.doi.org/10.17877/DE290R-21683 | |
| dc.language.iso | en | de |
| dc.relation.ispartofseries | Angew. Chem., Int. Ed. Engl.;59(50) | |
| dc.rights.uri | https://creativecommons.org/licenses/by/4.0/ | |
| dc.subject | Supramolecular chemistry | en |
| dc.subject | Cage motif | en |
| dc.subject | Lemniscates | en |
| dc.subject | Chiral ligands | en |
| dc.subject.ddc | 540 | |
| dc.title | A new mechanically-interlocked [Pd2L4] cage motif by dimerization of two peptide-based lemniscates | en |
| dc.title.alternative | in memory of Professor Carsten Schmuck | en |
| dc.type | Text | de |
| dc.type.publicationtype | article | de |
| dcterms.accessRights | open access | |
| eldorado.openaire.projectidentifier | info:eu-repo/grantAgreement/EC/H2020/683083/EU/Reactivity and Assembly of Multifunctional, Stimuli-responsive Encapsulation Structures/RAMSES | de |
| eldorado.secondarypublication | true | de |
| eldorado.secondarypublication.primarycitation | Schulte, T.R., Holstein, J.J., Schneider, L., Adam, A., Haberhauer, G. and Clever, G.H. (2020), A New Mechanically‐Interlocked [Pd2L4] Cage Motif by Dimerization of two Peptide‐based Lemniscates. Angew. Chem. Int. Ed. 59(50), 22489-22493. | de |
| eldorado.secondarypublication.primaryidentifier | https://doi.org/10.1002/anie.202010995 | de |