Hierarchical Self-Assembly of Polyoxometalate-Based Organo Palladium(II) Metallomacrocycles via Electrostatic Interactions

The design and synthesis of a supramolecular square composed of polyoxometalate-based hybrid donors and ethylenediamine palladium­(II) nodes are reported. The structure of the metallomacrocycle scaffold was inferred by diffusion NMR, small-angle X-ray scattering (SAXS), and molecular modeling. The m...

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Published inInorganic chemistry Vol. 59; no. 4; pp. 2458 - 2463
Main Authors Salles, Raphaël, Abécassis, Benjamin, Derat, Etienne, Brouri, Dalil, Bernard, Aurélie, Zhang, Qichun, Proust, Anna, Desmarets, Christophe, Izzet, Guillaume
Format Journal Article
LanguageEnglish
Published United States American Chemical Society 17.02.2020
Subjects
Chemical Sciences
POLE 1
ARC
POLE 2
MACO
E-POM
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Summary:The design and synthesis of a supramolecular square composed of polyoxometalate-based hybrid donors and ethylenediamine palladium­(II) nodes are reported. The structure of the metallomacrocycle scaffold was inferred by diffusion NMR, small-angle X-ray scattering (SAXS), and molecular modeling. The metallomacrocycle scaffold that contains negatively and positively charged subunits can further self-assemble owing to a competition between the solvation energy of the discrete species and intermolecular electrostatic interactions. When the dissociating character of the solvent was lowered or when in the presence of a protic solvent, different types of multiscale organizations (vesicles and pseudo-1D structures) were selectively formed and were characterized by SAXS and transmission electron microscopy.
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ISSN:0020-1669
1520-510X
DOI:10.1021/acs.inorgchem.9b03333