Issue 8, 2011

Oxo-centered carboxylate-bridged trinuclear complexes deposited on Au(111) by a mass-selective electrospray

Abstract

We explored the possibility to deposit Molecular NanoMagnets (metallorganic complexes) by electrospray. To this end, we developed an apparatus for nondestructive in vacuum deposition of fragile molecular complexes, by modifying a commercial Mass Spectrometer equipped with an electrospray ionization source. Starting from solution, this system creates a beam of ionized molecules which is then transferred into an evacuated region where molecules can be mass selected before deposition. To check the system efficiency, we deposited sub monolayers of oxo-centered carboxylate-bridged trinuclear complexes (Cr3 and Cr2Ni) on the Au(111) surface. By XPS and STM we determined the deposited molecule stoichiometry and the surface coverage. Results show that this type of apparatus works well for the in vacuum deposition of molecular nanomagnets and, thanks to the reduced dimensions, it is portable and adaptable to facilities requiring UHV.

Graphical abstract: Oxo-centered carboxylate-bridged trinuclear complexes deposited on Au(111) by a mass-selective electrospray

Supplementary files

Article information

Article type
Paper
Submitted
28 Jan 2011
Accepted
26 May 2011
First published
28 Jun 2011

New J. Chem., 2011,35, 1683-1689

Oxo-centered carboxylate-bridged trinuclear complexes deposited on Au(111) by a mass-selective electrospray

V. Corradini, C. Cervetti, A. Ghirri, R. Biagi, U. del Pennino, G. A. Timco, R. E. P. Winpenny and M. Affronte, New J. Chem., 2011, 35, 1683 DOI: 10.1039/C1NJ20080A

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