Metal clusters with appropriate molecular ligands have been shown to be suitable subnanometer building blocks for supramolecular architectures with controlled secondary interactions, providing access to physical regimes not achievable with conventional intermolecular motifs. An example is the excimer photophysics exhibited by individual cluster-based superstructures produced by top-down etching of gold nanoparticles. Now, a supramolecular architecture of copper clusters is presented with controlled optical properties and efficient non-resonant luminescence produced via a novel bottom-up synthesis using mild green reductants followed by a ligand exchange reaction and spontaneous supramolecular assembly. Spectroscopic experiments confirm the formation of the intercluster network and reveal the permanent nature of their excimer-like behavior, thus extending the potential impact and applicability of metal cluster superstructures as efficient and stable non-resonant single-particle emitters.

Santiago-Gonzalez, B., Monguzzi, A., Capitani, C., Prato, M., Santambrogio, C., Meinardi, F., et al. (2018). Bottom-up Synthesis and Self-Assembly of Copper Clusters into Permanent Excimer Supramolecular Nanostructures. ANGEWANDTE CHEMIE. INTERNATIONAL EDITION, 57(24), 7051-7055 [10.1002/anie.201801806].

Bottom-up Synthesis and Self-Assembly of Copper Clusters into Permanent Excimer Supramolecular Nanostructures

Santiago-Gonzalez B.;Monguzzi A.;CAPITANI, CHIARA;Santambrogio C.;Meinardi F.;Brovelli S.
2018

Abstract

Metal clusters with appropriate molecular ligands have been shown to be suitable subnanometer building blocks for supramolecular architectures with controlled secondary interactions, providing access to physical regimes not achievable with conventional intermolecular motifs. An example is the excimer photophysics exhibited by individual cluster-based superstructures produced by top-down etching of gold nanoparticles. Now, a supramolecular architecture of copper clusters is presented with controlled optical properties and efficient non-resonant luminescence produced via a novel bottom-up synthesis using mild green reductants followed by a ligand exchange reaction and spontaneous supramolecular assembly. Spectroscopic experiments confirm the formation of the intercluster network and reveal the permanent nature of their excimer-like behavior, thus extending the potential impact and applicability of metal cluster superstructures as efficient and stable non-resonant single-particle emitters.
Articolo in rivista - Articolo scientifico
luminescent clusters; metal clusters; permanent excimers; sub-nanometric building blocks; supramolecular nanostructures;
English
2018
57
24
7051
7055
none
Santiago-Gonzalez, B., Monguzzi, A., Capitani, C., Prato, M., Santambrogio, C., Meinardi, F., et al. (2018). Bottom-up Synthesis and Self-Assembly of Copper Clusters into Permanent Excimer Supramolecular Nanostructures. ANGEWANDTE CHEMIE. INTERNATIONAL EDITION, 57(24), 7051-7055 [10.1002/anie.201801806].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10281/240394
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