Titre :

Probing Frontier Orbital Energies of {Co 9 (P 2 W 15 ) 3 } Polyoxometalate Clusters at Molecule–Metal and Molecule–Water Interfaces

Auteur(s) :

Yi, Xiaofeng [Auteur]
Izarova, Natalya V. [Auteur]
Stuckart, Maria [Auteur]
Guérin, David [Auteur]
Thomas, Louis [Auteur]
Lenfant, Stephane [Auteur]
Institut d’Électronique, de Microélectronique et de Nanotechnologie - UMR 8520 [IEMN]
Vuillaume, Dominique [Auteur]
Nanostructures, nanoComponents & Molecules - IEMN [NCM - IEMN]
Institut d’Électronique, de Microélectronique et de Nanotechnologie - UMR 8520 [IEMN]
van Leusen, Jan [Auteur]
Institute of Inorganic Chemistry [Aachen] [IAC RWTH]
Duchon, Tomas [Auteur]
Nemsak, Slavomir [Auteur]
Bourone, Svenja D. M. [Auteur]
Schmitz, Sebastian [Auteur]
Institute for Industrial Management [RWTH Aachen University] [FIR]
Kögerler, Paul [Auteur]
Institute of Inorganic Chemistry [Aachen] [IAC RWTH]

Titre de la revue :

Journal of the American Chemical Society

Pagination :

14501-14510

Éditeur :

American Chemical Society

Date de publication :

2017-10-09

ISSN :

0002-7863

Discipline(s) HAL :

Physique [physics]
Physique [physics]/Matière Condensée [cond-mat]

Résumé en anglais : [en]

Functionalization of polyoxotungstates with organoarsonate co-ligands enabling surface decoration was explored for the triangular cluster architectures of the composition [CoII9(H2O)6(OH)3(p-RC6H4AsVO3)2({\alpha}-PV2WVI1 ...
Lire la suite >Functionalization of polyoxotungstates with organoarsonate co-ligands enabling surface decoration was explored for the triangular cluster architectures of the composition [CoII9(H2O)6(OH)3(p-RC6H4AsVO3)2({\alpha}-PV2WVI15O56)3]25-({Co9(P2W15)3}, R = H or NH2), isolated as Na25[Co9(OH)3(H2O)6(C6H5AsO3)2(P2W15O56)3]86H2O (Na-1) and Na25[Co9(OH)3(H2O)6(H2NC6H4AsO3)2(P2W15O56)3]86H2O (Na-2). The axially oriented para-aminophenyl groups in 2 facilitate the formation of self-assembled monolayers on gold surfaces, and thus provide a viable molecular platform for charge transport studies of magnetically functionalized polyoxometalates. The title systems were isolated and characterized in the solid state and in aqueous solutions, and on metal surfaces. Using conducting tip atomic force microscopy (C-AFM), the energies of {Co9(P2W15)3} frontier molecular orbitals in the surface-bound state were found to directly correlate with cyclic voltammetry data in aqueous solution.Lire moins >

Langue :

Anglais

Comité de lecture :

Oui

Audience :

Internationale

Vulgarisation :

Non

Commentaire :

Full paper with figures and supporting information

Collections :

• Institut d'Électronique, de Microélectronique et de Nanotechnologie (IEMN) - UMR 8520

Source :

Harvested from HAL