Marquardt, Christian and Kahoun, Tobias and Stauber, Andreas and Balazs, Gabor and Bodensteiner, Michael and Timoshkin, Alexey Y. and Scheer, Manfred (2016) Anionic Chains of Parent Pnictogenylboranes. ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, 55 (47). pp. 14828-14832. ISSN 1433-7851, 1521-3773
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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 center dot NMe3 (1a = P, 1b = 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'H-2](-) (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.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | PHOSPHORUS-BORON BONDS; MOLECULAR-STRUCTURES; CATALYZED FORMATION; PHOSPHINE-BORANE; TRANSITION-METAL; CHEMISTRY; COMPLEXES; DERIVATIVES; CATIONS; SALTS; anions; arsenic; boron; molecular chains; phosphorus |
| Subjects: | 500 Science > 540 Chemistry & allied sciences |
| Divisions: | Chemistry and Pharmacy > Institut für Anorganische Chemie Chemistry and Pharmacy > Institut für Anorganische Chemie > Chair Prof. Dr. Manfred Scheer |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 15 Mar 2019 11:50 |
| Last Modified: | 15 Mar 2019 11:50 |
| URI: | https://pred.uni-regensburg.de/id/eprint/3950 |
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