Hegen, Oliver and Virovets, Alexander V. and Timoshkin, Alexey Y. and Scheer, Manfred (2018) The Lewis-Base-Stabilized Diphenyl-Substituted Arsanylborane: A Versatile Building Block for Arsanylborane Oligomers. CHEMISTRY-A EUROPEAN JOURNAL, 24 (62). pp. 16521-16525. ISSN 0947-6539, 1521-3765
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The synthesis and properties of the diphenyl-substituted arsanylborane Ph2AsBH2SMe2 (1) and Ph2AsBH2NMe3 (2) stabilized by a Lewis base (LB) were reported. These compounds were obtained by reaction of KAsPh2 with IBH2-LB (LB=SMe2, NMe3). Compounds 1 and 2 were used as starting materials for oligomeric/ polymeric arsinoboranes. The neutral species, H3B-Ph2AsBH2NMe3 (3) and Br3B-Ph2AsBH2NMe3 (4), were synthesized by reaction with H3B and Br3B, respectively. Upon reaction with IBH2-LB (LB=SMe2, NMe3), the cationic oligomeric group-13/15-based compounds [(Me3NBH2AsPh2BH2NMe3)]I (5) and [H2B(Ph2AsBH2NMe3)(2)]I (6) were obtained. All compounds were completely characterized. In addition, the oxidation of Ph2AsBH2NMe3 with chalcogens was studied. The sulfur Ph2As(S)BH2NMe3 (7 b) and selenium Ph2As(Se)BH2NMe3 (7 c) oxidation products were both isolated and fully characterized, whereas the bis(trimethylsilyl)peroxide oxidated arsinoborane Ph2As(O)BH2NMe3 (7 a) was not stable enough and could only be characterized in solution. DFT computations supported the decomposition pathway of this compound.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | INORGANIC POLYMERS; BORANE ADDUCTS; ARSINE OXIDES; AMINE-BORANES; MAIN-CHAIN; BORON; PHOSPHORUS; DEHYDROPOLYMERIZATION; POLYMERIZATION; COMPLEXES; arsenic; boron; cations; oligomers; oxidation |
| Subjects: | 500 Science > 540 Chemistry & allied sciences |
| Divisions: | Chemistry and Pharmacy > Institut für Anorganische Chemie > Chair Prof. Dr. Manfred Scheer |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 10 Oct 2019 06:45 |
| Last Modified: | 10 Oct 2019 06:45 |
| URI: | https://pred.uni-regensburg.de/id/eprint/13550 |
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