title: Pnictogen-Silicon Analogues of Benzene.
abstract: Since the discovery of the first "inorganic benzene" (borazine, B3N3H6), the synthesis of other noncarbon derivatives is an ongoing challenge in Inorganic Chemistry. Here we report on the synthesis of the first pnictogen-silicon congeners of benzene, the triarsa- and the triphospha-trisilabenzene [(PhC(NtBu)2)3Si3E3] (E = P (1a), As (1b)) by a simple metathesis reaction. These compounds are formed by the reaction of [Cp″2Zr(η(1:1)-E4)] (E = P, As; Cp″ = C5H3tBu2) with [PhC(NtBu)2SiCl] in toluene at room temperature along with the silicon pnictogen congeners of the cyclobutadiene, [(PhC(NtBu)2)2Si2E2] (E = P (2a), As (2b)), which is unprecedented for the arsenic system 2b. All compounds were comprehensively characterized, and density functional theory calculations were performed to verify the stability and the aromatic character of the triarsa- and the triphospha-trisilabenzene.
authors: Institute of Inorganic Chemistry, University of Regensburg , Universitätsstr. 31, 93040 Regensburg, Germany.
authors: Andreas E
authors: AE
authors: Seitz
authors: Institute of Inorganic Chemistry, University of Regensburg , Universitätsstr. 31, 93040 Regensburg, Germany.
authors: Maria
authors: M
authors: Eckhardt
authors: Otto-Schott-Institut für Materialforschung, Friedrich-Schiller-Universität Jena , Löbdergraben 32, 07743 Jena, Germany.
authors: Andreas
authors: A
authors: Erlebach
authors: Institute of Inorganic Chemistry, University of Regensburg , Universitätsstr. 31, 93040 Regensburg, Germany.|Nikolaev Institute of Inorganic Chemistry SB RAS , Ak. Lavrentiev prosp. 3, 630090 Novosibirsk, Russia.
authors: Eugenia V
authors: EV
authors: Peresypkina
authors: Otto-Schott-Institut für Materialforschung, Friedrich-Schiller-Universität Jena , Löbdergraben 32, 07743 Jena, Germany.
authors: Marek
authors: M
authors: Sierka
authors: Institute of Inorganic Chemistry, University of Regensburg , Universitätsstr. 31, 93040 Regensburg, Germany.
authors: Manfred
authors: M
authors: Scheer