title: Solution and solid state structures and magnetism of a series of linear trinuclear compounds with a hexacoordinate LnIIIand two terminal NiIIcenters.
abstract: Reported are the syntheses, structures and magnetic properties, also by NMR spectroscopy in solution, of a series of 13 linear trinuclear 3d-4f compounds with a lanthanide(iii) surrounded by two NiIIions, NiLnIII, where the central LnIIIis hexacoordinate. For three of the crystal structures, an additional H2O molecule is coordinated to the central LnIIIion, leading to a monocapped trigonal prismatic structure. However, NMR spectroscopy indicates that in solution, these complexes also have a hexacoordinate LnIIIcenter. The solution magnetic anisotropies, determined by NMR spectroscopy, indicate that the axial components of the anisotropies are relatively small and that the DyIIIderivative might therefore not exhibit single molecule magnetism. The axial anisotropies determined by NMR spectroscopy are in good agreement with the expectations based on the distorted trigonal prismatic ligand field.
authors.affiliation: Universität Heidelberg, Anorganisch-Chemisches Institut INF 270, D-69120 Heidelberg, Germany. peter.comba@aci.uni-heidelberg.de markus.enders@uni-heidelberg.de and Interdisziplinäres Zentrum für Wissenschaftliches Rechnen, IWR, INF 270, D-69120 Heidelberg, Germany.
authors.forename: Peter
authors.identifier: http://orcid.org/0000-0001-7796-3532
authors.initials: P
authors.lastname: Comba
authors.affiliation: Universität Heidelberg, Anorganisch-Chemisches Institut INF 270, D-69120 Heidelberg, Germany. peter.comba@aci.uni-heidelberg.de markus.enders@uni-heidelberg.de.
authors.forename: Markus
authors.identifier: http://orcid.org/0000-0003-0415-1992
authors.initials: M
authors.lastname: Enders
authors.affiliation: Universität Heidelberg, Anorganisch-Chemisches Institut INF 270, D-69120 Heidelberg, Germany. peter.comba@aci.uni-heidelberg.de markus.enders@uni-heidelberg.de.
authors.forename: Michael
authors.initials: M
authors.lastname: Großhauser
authors.affiliation: Universität Heidelberg, Anorganisch-Chemisches Institut INF 270, D-69120 Heidelberg, Germany. peter.comba@aci.uni-heidelberg.de markus.enders@uni-heidelberg.de.
authors.forename: Markus
authors.initials: M
authors.lastname: Hiller
authors.affiliation: Universität Heidelberg, Anorganisch-Chemisches Institut INF 270, D-69120 Heidelberg, Germany. peter.comba@aci.uni-heidelberg.de markus.enders@uni-heidelberg.de and Interdisziplinäres Zentrum für Wissenschaftliches Rechnen, IWR, INF 270, D-69120 Heidelberg, Germany.
authors.forename: Dennis
authors.initials: D
authors.lastname: Müller
authors.affiliation: Universität Heidelberg, Anorganisch-Chemisches Institut INF 270, D-69120 Heidelberg, Germany. peter.comba@aci.uni-heidelberg.de markus.enders@uni-heidelberg.de.
authors.forename: Hubert
authors.initials: H
authors.lastname: Wadepohl