2026-04-13T03:06:31Zhttps://recercat.cat/oai/request
oai:recercat.cat:2072/3057402026-01-15T14:12:34Zcom_2072_300912com_2072_4427col_2072_301309
RECERCAT author Izzet, Guillaume author Abécassis, Benjamin author Brouri, Dalil author Piot, Madeleine author Matt, Benjamin author Serapian, Stefano Artin author Bo, Carles author Proust, Anna 2018-01-15T16:04:09Z2018-02-15T10:27:25Z2024-04-23T10:25:19Z 2018-01-15T16:04:09Z2018-02-15T10:27:25Z2024-04-23T10:25:19Z 2016 http://hdl.handle.net/2072/305740 https://doi.org/10.1021/jacs.6b00972 <p> The metal-driven self-assembly processes of a covalent polyoxometalate (POM)-based hybrid bearing remote terpyridine binding sites have been investigated. In a strongly dissociating solvent, a discrete metallomacrocycle, described as a molecular triangle, is formed and characterized by 2D diffusion NMR spectroscopy (DOSY), small-angle X-ray scattering (SAXS) and molecular modeling. In a less dissociating solvent, the primary supramolecular structure, combining negatively charged POMs and cationic metal linkers, further self-assemble through intermolecular electrostatic interactions in a reversible process. The resulting hierarchical assemblies are dense monodisperse nanoparticles composed of <em>ca.</em> 50 POMs that were characterized by SAXS and High-Resolution Transmission Electron Microscopy (HR-TEM). This multi-scale organized system directed by metal coordination and electrostatic interactions constitutes a promising step for the future design of POM self-assemblies with controllable structure-directing factors.</p> eng Hierarchical Self-Assembly of Polyoxometalate-Based Hybrids Driven by Metal Coordination and Electrostatic Interactions: From Discrete Supramolecular info:eu-repo/semantics/article URL https://recercat.cat/bitstream/2072/305740/2/20160309_Izzet_revised_manuscript_revSAS_ICIQREP.pdf File MD5 2e0d9d8f3db5acf5832c2fec3347ea66 5093323 application/pdf 20160309_Izzet_revised_manuscript_revSAS_ICIQREP.pdf URL https://recercat.cat/bitstream/2072/305740/1/20160309_Izzet_revised_manuscript_revSAS_ICIQREP.pdf.txt File MD5 b60743ead458028e6c10cc231ae7861b 37334 text/plain 20160309_Izzet_revised_manuscript_revSAS_ICIQREP.pdf.txt