title: A square-planar osmium(ii) complex.
abstract: Reduction of the pincer complex [OsIIICl2(PNP)] (PNP = N(CHCHPtBu2)2) affords the isolation and full characterization of an osmium(ii) complex with square-planar coordination geometry, i.e. [OsIICl(PNP)]. Spectroscopic, structural and magnetic data in combination with multireference computations indicate strong temperature independent paramagnetism, which arises from an energetically well separated ground state that mixes with excited states through spin-orbit coupling.
authors.affiliation: University of Goettingen, Institut für Anorganische Chemie, Tammannstraße 4, 37077 Göttingen, Germany. Sven.Schneider@chemie.uni-goettingen.de.
authors.forename: Josh
authors.initials: J
authors.lastname: Abbenseth
authors.forename: Martin
authors.initials: M
authors.lastname: Diefenbach
authors.forename: Sarah C
authors.initials: SC
authors.lastname: Bete
authors.forename: Christian
authors.initials: C
authors.lastname: Würtele
authors.forename: Christian
authors.initials: C
authors.lastname: Volkmann
authors.forename: Serhiy
authors.initials: S
authors.lastname: Demeshko
authors.forename: Max C
authors.initials: MC
authors.lastname: Holthausen
authors.forename: Sven
authors.initials: S
authors.lastname: Schneider