title: Anionic Chains of Parent Pnictogenylboranes.
abstract: We report on the synthesis and structural characterization of unprecedented anionic parent compounds of mixed Group 13/15 elements. The reactions of the pnictogenylboranes H2E-BH2⋅NMe3(1 a=P, 1 b=As) with phosphorus and arsenic centered nucleophiles of the type [EH2]-(E=P, As) lead to the formation of compounds of the type [H2E-BH2-E'H2]-(2: E=E'=P; 3: E=E'=As; 4: E=P, E'=As) containing anionic pnictogen-boron chain-like units. Furthermore, a longer 5-membered chain species [H2As-BH2-PH2-BH2-AsH2]-(5) and a cyclic compound [NHCdipp-H2B-PH2-BH2-NHCdipp]+[P5B5H19]-(6) containing a n-butylcyclohexane-like anion were obtained. All the compounds have been characterized by X-ray structure analysis, multinuclear NMR spectroscopy, IR spectroscopy, and mass spectrometry. DFT calculations elucidate their high thermodynamic stability, the charge distribution, and give insight into the reaction pathway.
authors: Universität Regensburg, Institut für Anorganische Chemie, 93040, Regensburg, Germany.
authors: Christian
authors: C
authors: Marquardt
authors: Universität Regensburg, Institut für Anorganische Chemie, 93040, Regensburg, Germany.
authors: Tobias
authors: T
authors: Kahoun
authors: Universität Regensburg, Institut für Anorganische Chemie, 93040, Regensburg, Germany.
authors: Andreas
authors: A
authors: Stauber
authors: Universität Regensburg, Institut für Anorganische Chemie, 93040, Regensburg, Germany.
authors: Gábor
authors: G
authors: Balázs
authors: Universität Regensburg, Institut für Anorganische Chemie, 93040, Regensburg, Germany.
authors: Michael
authors: M
authors: Bodensteiner
authors: Institute of Chemistry, St. Petersburg State University, Universitetskaya nab. 7/9, 199034, St. Petersburg, Russia.
authors: Alexey Y
authors: 0000-0002-1932-6647
authors: AY
authors: Timoshkin
authors: Universität Regensburg, Institut für Anorganische Chemie, 93040, Regensburg, Germany.
authors: Manfred
authors: 0000-0003-2182-5020
authors: M
authors: Scheer
keywords: anions; arsenic; boron; molecular chains; phosphorus