title: Cationic chains of phosphanyl- and arsanylboranes.
abstract: Whilst catena-phosphorus cations have been intensively studied in the last years, mixed Group 13/15 element cationic chains have not yet been reported. Reaction of the pnictogenboranes H2EBH2⋅NMe3 (E=P, As) with monohalideboranes lead to the cationic chain compounds [Me3N⋅BH2EH2BH2⋅NMe3][X] (E=P, As; X=AlCl4 , I) and [Me3N⋅BH2PH2BH2PH2BH2⋅NMe3][X] (X=I, VCl4(thf)2), respectively. All of the compounds have been characterized by X-ray structure analysis, NMR spectroscopy, IR spectroscopy, and mass spectrometry. DFT calculations elucidate the reaction pathway, the high thermodynamic stability, the charge distribution within the chain and confirm the observed solid-state structures.
authors.affiliation: University of Regensburg, Institut für Anorganische Chemie, 93040 Regensburg (Germany).
authors.forename: Christian
authors.initials: C
authors.lastname: Marquardt
authors.forename: Christine
authors.initials: C
authors.lastname: Thoms
authors.forename: Andreas
authors.initials: A
authors.lastname: Stauber
authors.forename: Gábor
authors.initials: G
authors.lastname: Balázs
authors.forename: Michael
authors.initials: M
authors.lastname: Bodensteiner
authors.forename: Manfred
authors.initials: M
authors.lastname: Scheer
keywords: arsenic; boron; cationic chains; pentelylboranes; phosphorus