Changes of the molecule-substrate interaction upon metal inclusion into a porphyrin.
Metal-dependent conformations: a change in the adaptation of tetraphenylporphyrins (TPPs) on Ag(111) was observed in the presence of a metal ion in the macrocycle. Upon annealing at T>575 K, 2H-TPP molecules increase the overlap of the phenyl π orbitals with the substrate, thus reducing the distance. The presence of Co creates a strong bond between Co dz(2) and the Ag sp states, leaving the porphyrin macrocycle at a larger distance to the surface.
ST-INSTM, Trieste, Italy. giovanni.disanto@elettra.trieste.it
Giovanni
G
Di Santo
Cristina
C
Sfiligoj
Carla
C
Castellarin-Cudia
Alberto
A
Verdini
Albano
A
Cossaro
Alberto
A
Morgante
Luca
L
Floreano
Andrea
A
Goldoni