title: Magnetic Properties of Group 8 Metal-Metal-Bonded Porphyrin and Tetraazaporphyrin Dimers.
abstract: Solid state magnetic susceptibility data (2-350 K) are presented for the metal-metal doubly bonded dimers [Ru(OEP)](2) (OEP = octaethylporphyrin), [Ru(OETAP)](2) (OETAP = octaethyltetraazaporphyrin), and [Os(OEP)](2). The data are consistent with strong zero-field splitting of the triplet ground state (D approximately 240-630 cm(-)(1)). Variable temperature (200-300 K) (1)H NMR data are presented for [Os(OEP)](2) and [Ru(OETAP)](2) and for two heterodimers, [(OEP)RuRu(OETAP)] and [(OEP)OsRu(OETAP)].
authors.affiliation: Department of Chemistry, Stanford University, Stanford, California 94305-5080, Laboratoire de Chimie de Coordination, Département de Recherche Fondamentale sur la Matière Condensée/SCIB, CEA-Grenoble, 38054 Grenoble, France, and Department of Chemistry and Biochemistry, University of Colorado at Boulder, Boulder, Colorado 80309.
authors.forename: Hilary Arnold
authors.initials: HA
authors.lastname: Godwin
authors.forename: James P.
authors.initials: JP
authors.lastname: Collman
authors.forename: Jean-Claude
authors.initials: JC
authors.lastname: Marchon
authors.forename: Pascale
authors.initials: P
authors.lastname: Maldivi
authors.forename: Gordon T.
authors.initials: GT
authors.lastname: Yee
authors.forename: Brenda J.
authors.initials: BJ
authors.lastname: Conklin