期刊
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
卷 61, 期 47, 页码 -出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/anie.202209305
关键词
Coordination Cages; Host-Guest Chemistry; MD Simulation; Self-Assembly; Supramolecular Chemistry
资金
- Deutsche Forschungsgemeinschaft (DFG) [GRK2376, 331085229]
- European Research Council (ERC) [683083]
- China Scholarship Council
- German Research Foundation (DFG) [271512359]
A series of heteroleptic [Pd(2)A(2)B(2)] coordination cages were self-assembled from a library of shape complementary ligands, which selectively bind phosphate diesters. Molecular dynamics simulations were conducted to understand the mechanistic relationships behind guest affinities.
Metallosupramolecular hosts of nanoscopic dimensions, which are able to serve as selective receptors and catalysts, are usually composed of only one type of organic ligand, restricting diversity in terms of cavity shape and functional group decoration. We report a series of heteroleptic [Pd(2)A(2)B(2)] coordination cages that self-assemble from a library of shape complementary bis-monodentate ligands in a non-statistical fashion. Ligands A feature an inward pointing NH function, able to engage in hydrogen bonding and amenable to being functionalized with amide and alkyl substituents. Ligands B comprise tricyclic aromatic backbones of different shape and electronic situation. The obtained heteroleptic coordination cages were investigated for their ability to bind phosphate diesters as guests. All-atom molecular dynamics (MD) simulations in explicit solvent were conducted to understand the mechanistic relationships behind the experimentally determined guest affinities.
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