id,collection,dc.contributor.author,dc.date.accessioned,dc.date.available,dc.date.issued,dc.description.abstract[en],dc.format.extent,dc.identifier.uri,dc.language,dc.rights.uri,dc.subject.ddc,dc.subject[en],dc.title,dc.type,dcterms.accessRights.openaire,dcterms.bibliographicCitation.doi,dcterms.bibliographicCitation.journaltitle,dcterms.bibliographicCitation.number,dcterms.bibliographicCitation.pageend,dcterms.bibliographicCitation.pagestart,dcterms.bibliographicCitation.url,dcterms.bibliographicCitation.volume,dcterms.isPartOf.eissn,refubium.affiliation,refubium.note.author,refubium.resourceType.isindependentpub "386da3e1-a7f7-49d4-9611-04541dcb8c0f","fub188/16","Rolf, Daniela||Lotze, Christian||Czekelius, Constantin||Heinrich, Benjamin W.||Franke, Katharina J.","2020-04-08T08:05:19Z","2020-04-08T08:05:19Z","2018","The magnetic properties of metal–organic complexes are strongly influenced by conformational changes in the ligand. The flexibility of Fe-tetra-pyridyl-porphyrin molecules leads to different adsorption configurations on a Au(111) surface. By combining low-temperature scanning tunneling spectroscopy and atomic force microscopy, we resolve a correlation of the molecular configuration with different spin states and magnitudes of magnetic anisotropy. When the macrocycle exhibits a laterally undistorted saddle shape, the molecules lie in a S = 1 state with axial anisotropy arising from a square-planar ligand field. If the symmetry in the molecular ligand field is reduced by a lateral distortion of the molecule, we find a finite contribution of transverse anisotropy. Some of the distorted molecules lie in a S = 2 state, again exhibiting substantial transverse anisotropy.","10 Seiten","https://refubium.fu-berlin.de/handle/fub188/27079||http://dx.doi.org/10.17169/refubium-26840","eng","http://www.fu-berlin.de/sites/refubium/rechtliches/Nutzungsbedingungen","500 Naturwissenschaften und Mathematik::530 Physik::530 Physik","molecules||magnetic properties||pyridyl||molecular structure||quantum mechanics","Visualizing intramolecular distortions as the origin of transverse magnetic anisotropy","Wissenschaftlicher Artikel","open access","10.1021/acs.jpclett.8b03036","The journal of physical chemistry letters","22","6567","6563","https://doi.org/10.1021/acs.jpclett.8b03036","9","1948-7185","Physik","This document is the Accepted Manuscript version of a Published Work that appeared in final form in The Journal of Physical Chemistry Letters, copyright © American Chemical Society after peer review and technical editing by the publisher. To access the final edited and published work see http://dx.doi.org/10.1021/acs.jpclett.8b03036.","no"