TY - JOUR
T1 - A Ru-Ru pair housed in ruthenium phthalocyanine
T2 - The role of a "cage" architecture in the molecule coupling with the Ag(111) surface
AU - Alippi, Paola
AU - Lanzilotto, Valeria
AU - Paoletti, Anna Maria
AU - Mattioli, Giuseppe
AU - Zanotti, Gloria
AU - Pennesi, Giovanna
AU - Filippone, Francesco
AU - Cossaro, Albano
AU - Verdini, Alberto
AU - Morgante, Alberto
AU - Amore Bonapasta, Aldo
N1 - Publisher Copyright:
© 2017 the Owner Societies.
PY - 2017/1/1
Y1 - 2017/1/1
N2 - A number of studies have investigated the properties of monomeric and double-decker phthalocyanines (Pcs) adsorbed on metal surfaces, in view of applications in spintronics devices. In a combined experimental and theoretical study, we consider here a different member of the Pcs family, the (RuPc)2 dimer, whose structure is characterized by two paired up magnetic centers embedded in a double-decker architecture. For (RuPc)2 on Ag(111), we show that this architecture works as a preserving cage by shielding the Ru-Ru pair from a direct interaction with the surface atoms. In fact, while noticeable surface-to-molecule charge transfer occurs with the ensuing quenching of the molecular magnetic moment, such phenomena occur here in the absence of a direct Ru-Ag coupling or structural rearrangement, at variance with other Pcs and thanks to the above shielding effect. These unique properties of the (RuPc)2 architecture are expected to permit an easy control of the surface-to-molecule charge-transfer process as well as of the molecular magnetic properties, thus making the (RuPc)2 dimer a significant paradigm for innovative "cage" structures as well as a promising candidate for applications in spintronics nano or single-molecule devices.
AB - A number of studies have investigated the properties of monomeric and double-decker phthalocyanines (Pcs) adsorbed on metal surfaces, in view of applications in spintronics devices. In a combined experimental and theoretical study, we consider here a different member of the Pcs family, the (RuPc)2 dimer, whose structure is characterized by two paired up magnetic centers embedded in a double-decker architecture. For (RuPc)2 on Ag(111), we show that this architecture works as a preserving cage by shielding the Ru-Ru pair from a direct interaction with the surface atoms. In fact, while noticeable surface-to-molecule charge transfer occurs with the ensuing quenching of the molecular magnetic moment, such phenomena occur here in the absence of a direct Ru-Ag coupling or structural rearrangement, at variance with other Pcs and thanks to the above shielding effect. These unique properties of the (RuPc)2 architecture are expected to permit an easy control of the surface-to-molecule charge-transfer process as well as of the molecular magnetic properties, thus making the (RuPc)2 dimer a significant paradigm for innovative "cage" structures as well as a promising candidate for applications in spintronics nano or single-molecule devices.
UR - http://www.scopus.com/inward/record.url?scp=85027000624&partnerID=8YFLogxK
U2 - 10.1039/c6cp06094c
DO - 10.1039/c6cp06094c
M3 - Article
C2 - 27982139
AN - SCOPUS:85027000624
SN - 1463-9076
VL - 19
SP - 1449
EP - 1457
JO - Physical Chemistry Chemical Physics
JF - Physical Chemistry Chemical Physics
IS - 2
ER -