Title :

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

Author(s) :

Yi, Xiaofeng [Auteur]
Izarova, Natalya V. [Auteur]
Stuckart, Maria [Auteur]
Guérin, David [Auteur]
Thomas, Louis [Auteur]
Lenfant, Stéphane [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 e.V. an der RWTH Aachen]
Kögerler, Paul [Auteur]
Institute of Inorganic Chemistry [Aachen] [IAC RWTH]

Journal title :

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY

Pages :

14501-14510

Publisher :

American Chemical Society

Publication date :

2017-10-09

ISSN :

0002-7863

HAL domain(s) :

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

English abstract : [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 ...
Show more >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.Show less >

Language :

Anglais

Peer reviewed article :

Oui

Audience :

Internationale

Popular science :

Non

Comment :

Full paper with figures and supporting information

Collections :

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

Source :

Harvested from HAL