Carlotto, SilviaFuhr, Javier D.Cossaro, AlbanoVerdini, AlbertoCasarin, MaurizioLingenfelder, MagaliGayone, Julio E.Floreano, LucaAscolani, Hugo2021-07-312021-07-312021-07-312021-06-1510.1016/j.apsusc.2021.149307https://infoscience.epfl.ch/handle/20.500.14299/180377WOS:000674654300013By means of Mn-Cu transmetalation, we incorporated Mn atoms in an array of TCNQ (7,7,8,8-tetracyanoquinodimethane) grown on Cu(100), forming a long range ordered and commensurate metal-organic coordination network (MOCN). Preliminary Sn alloying of the Cu(100) surface allowed us to control the degree of substrate reactivity, thus preventing the chemical interaction of the Mn-TCNQ MOCN with the substrate. Mn2+ ions are stabilized in an artificial tetra-pyrrolic coordination, which mimics the macrocyle configuration of Mn-phthalocyanines/porphyrins. X-ray absorption spectroscopy at the Mn L-2,L-3-edge indicates that the Mn ions are in a high-spin state (S = 5/2), in agreement with DFT + U calculations which also shows that the electronic structure of this Mn-TCNQ MOCN is very similar to that of the corresponding unsupported MOCN.Chemistry, PhysicalMaterials Science, Coatings & FilmsPhysics, AppliedPhysics, Condensed MatterChemistryMaterials SciencePhysicsmn-tcnq networksn-cu alloyinghigh spin mnrocis methodnexafsx-ray-absorptionmetal-organic networkselectronic-propertiesbasis-setstransitioncomplexesphthalocyanineexchangetext::journal::journal article::research article