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Miekisch, Thomas; Harms, Klaus; Wocadlo, Sigrid; Massa, Werner; Neumüller, Bernhard; Frommen, Christoph; Dehnicke, Kurt

Die Kristallstruckturen der Phosphaniminato-Komplexe.[Ti3 IVCl8(NPMe3)3]Cl und [V2 III/IVCl4(NPPh3)3]/Crystal Structures of the Phosphoraneiminato Complexes [Ti3 IVCl8(NPMe3)3]Cl and [V2 III/IVCl4(NPPh3)3]

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  • Medientyp: E-Artikel
  • Titel: Die Kristallstruckturen der Phosphaniminato-Komplexe.[Ti3 IVCl8(NPMe3)3]Cl und [V2 III/IVCl4(NPPh3)3]/Crystal Structures of the Phosphoraneiminato Complexes [Ti3 IVCl8(NPMe3)3]Cl and [V2 III/IVCl4(NPPh3)3]
  • Beteiligte: Miekisch, Thomas; Harms, Klaus; Wocadlo, Sigrid; Massa, Werner; Neumüller, Bernhard; Frommen, Christoph; Dehnicke, Kurt
  • Erschienen: Walter de Gruyter GmbH, 1997
  • Erschienen in: Zeitschrift für Naturforschung B
  • Sprache: Englisch
  • DOI: 10.1515/znb-1997-1208
  • ISSN: 1865-7117; 0932-0776
  • Schlagwörter: General Chemistry
  • Entstehung:
  • Anmerkungen:
  • Beschreibung: <jats:title>Abstract</jats:title> <jats:p> [Ti<jats:sub>3</jats:sub>Cl<jats:sub>8</jats:sub>(NPMe<jats:sub>3</jats:sub>)<jats:sub>3</jats:sub>]Cl has been prepared by the reaction of TiCl<jats:sub>3</jats:sub>(THF)<jats:sub>3</jats:sub> with Me<jats:sub>3</jats:sub>SiNPMe<jats:sub>3</jats:sub> in dichloromethane forming green moisture sensitive crystals. According to the crystal structure determination the titanium atoms of the cation [Ti<jats:sub>3</jats:sub>Cl<jats:sub>8</jats:sub>(NPMe<jats:sub>3</jats:sub>)<jats:sub>3</jats:sub>]<jats:sup>+</jats:sup> are linked by two μ<jats:sub>3</jats:sub>-N atoms of two NPMe<jats:sub>3</jats:sub> <jats:sup>-</jats:sup> groups forming a distorted trigonal-bipyramidal arrangement. The third NPMe<jats:sub>3</jats:sub> <jats:sup>-</jats:sup> group and two of the chlorine atoms have μ2-bridging functions. The mixed-valence complex [V<jats:sub>2</jats:sub>Cl<jats:sub>4</jats:sub>(NPPh<jats:sub>3</jats:sub>)<jats:sub>3</jats:sub>] is formed as dark green moisture sensitive crystals by the reaction of vanadium trichloride with Me<jats:sub>3</jats:sub>SiNPPh<jats:sub>3</jats:sub> in boiling toluene. According to the crystal structure determination the vanadium atoms are linked by two μ<jats:sub>2</jats:sub>-N atoms of two NPPh<jats:sub>3</jats:sub> <jats:sup>-</jats:sup> groups forming a nonplanar V<jats:sub>2</jats:sub>N<jats:sub>2</jats:sub> four-membered ring with a V-V distance of 266.8(1) pm which corresponds to a (σ, 1/2π) bond type. This is confirmed by the measurement of the magnetic susceptibility which leads to a magnetic moment of 1.45(5) B. M., corresponding to the remaining d<jats:sup>1</jats:sup> -electron.</jats:p>
  • Zugangsstatus: Freier Zugang