Triphenylene based metal-pyridine cages

[Display omitted] •We prepared three tris-pyridine containing triphenylene polydentate ligands.•Coordination with Pd(II) or Pt(II) metal corners led to different assemblies.•19F NMR was fundamental to monitor the formation of clear M3L2 aggregates.•M3L2 cage was confirmed by 2D-DOSY and semi-empiric...

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Published inTetrahedron letters Vol. 60; no. 43; pp. 151202 - 151208
Main Authors Berton, Giacomo, Lorenzetto, Tommaso, Borsato, Giuseppe, Sgarbossa, Paolo, Santo, Claudio, Visentin, Fabiano, Fabris, Fabrizio, Scarso, Alessandro
Format Journal Article
LanguageEnglish
Published OXFORD Elsevier Ltd 24.10.2019
Elsevier
Subjects
C3-symmetry
Chemistry
Chemistry, Organic
Coordination cage
Exchange process
Palladium
Physical Sciences
Platinum
Science & Technology
Supramolecular chemistry
Triphenylene
Platinum
C3-symmetry
Coordination cage
Palladium
Triphenylene
Supramolecular chemistry
Exchange process
M12L24 NANOSPHERES
CATALYSIS
C-3-symmetry
STABILIZATION
COMPLEXES
ENCAPSULATION
DRIVEN
M3L2 CAGES
COORDINATION CAGES
LIGANDS
DISCRETE
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Summary:[Display omitted] •We prepared three tris-pyridine containing triphenylene polydentate ligands.•Coordination with Pd(II) or Pt(II) metal corners led to different assemblies.•19F NMR was fundamental to monitor the formation of clear M3L2 aggregates.•M3L2 cage was confirmed by 2D-DOSY and semi-empirical calculations.•The stereochemistry of the assemblies was considered as well. C3-symmetric pyridine containing tris-benzyl-O-substituted hexahydroxytriphenylene derivatives were prepared and used in combination with square-planar Pd(II) and Pt(II) complexes for the self-assembly of molecular cages in solution. The formation of a trigonal bipyramid M3L2 cage was demonstrated by multinuclear NMR analyses and pseudo 2D DOSY experiments and supported by semi-empirical calculations.
ISSN:0040-4039
1873-3581
DOI:10.1016/j.tetlet.2019.151202