RT Journal Article
T1 Temperature-controlled metal/ligand stoichiometric ratioin Ag-TCNE coordination networks
A1 Rodríguez-Fernández, Jonathan
A1 Lauwaet, Koen
A1 Herranz, Maria Ángeles
A1 Martín, Nazario
A1 Gallego, José María
A1 Miranda, Rodolfo
A1 Otero, Roberto
AB The deposition of tetracyanoethylene (TCNE) on Ag(111), both at Room Temperature (RT, 300K) and low temperatures (150 K), leads to the formation of coordination networks involving silver adatoms, as revealed by Variable-Temperature Scanning Tunneling Microscopy (VT-STM). Our results indicate that TCNE molecules etch away material from the step edges and possibly also from the terraces, which facilitates the formation of the observed coordination networks. Moreover, such process is temperature dependent, which allows for different stoichiometric ratios between Ag and TCNE just by adjusting the deposition temperature. X-ray Photoelectron Spectroscopy (XPS) and Density Functional Theory (DFT)  calculations reveal that charge-transfer from the surface to the molecule and the concomitant geometrical distortions at both sides of the organic/inorganic interface might facilitate the extraction of silver atoms from the step-edges and, thus, its incorporation into the observed TCNE coordination networks.
PB AIP Publishing LLC
SN 0021-9606 (print),1089-7690 (online)
YR 2015
FD 2015
LK https://hdl.handle.net/20.500.14352/35075
UL https://hdl.handle.net/20.500.14352/35075
LA eng
NO Comunidad de Madrid
NO Ministerio de Ciencia e Innovación (MICINN)
DS Docta Complutense
RD 29 abr 2024