title: Room temperature metalation of 2H-TPP monolayer on iron and nickel surfaces by picking up substrate metal atoms.
abstract: Here, it is demonstrated, using high-resolution X-ray spectroscopy and density functional theory calculations, that 2H-tetraphenyl porphyrins metalate at room temperature by incorporating a surface metal atom when a (sub)monolayer is deposited on 3d magnetic substrates, such as Fe(110) and Ni(111). The calculations demonstrate that the redox metalation reaction would be exothermic when occurring on a Ni(111) substrate with an energy gain of 0.89 eV upon embedding a Ni adatom in the macrocycle. This is a novel way to form, via chemical modification and supramolecular engineering, 3d-metal-organic networks on magnetic substrates with an intimate bond between the macrocycle molecular metal ion and the substrate atoms. The achievement of a complete metalation by Fe and Ni can be regarded as a test case for successful preparation of spintronic devices by means of molecular-based magnets and inorganic magnetic substrates.
authors.affiliation: ST-INSTM Laboratory, Sincrotrone Trieste S.C.p.A. s.s.14 km. 163.5, 34149 Trieste, Italy. andrea.goldoni@elettra.trieste.it
authors.forename: Andrea
authors.initials: A
authors.lastname: Goldoni
authors.forename: Carlo A
authors.initials: CA
authors.lastname: Pignedoli
authors.forename: Giovanni
authors.initials: G
authors.lastname: Di Santo
authors.forename: Carla
authors.initials: C
authors.lastname: Castellarin-Cudia
authors.forename: Elena
authors.initials: E
authors.lastname: Magnano
authors.forename: Federica
authors.initials: F
authors.lastname: Bondino
authors.forename: Alberto
authors.initials: A
authors.lastname: Verdini
authors.forename: Daniele
authors.initials: D
authors.lastname: Passerone