Generation of a π-Bonded Isomer of [P4]4− by Aluminyl Reduction of White Phosphorus and its Ammonolysis to PH3

By employing the highly reducing aluminyl complex [K{(NON)Al}]<sub>2</sub> (NON=4,5-bis(2,6-diisopropylanilido)-2,7-di-tert-butyl-9,9-dimethylxanthene), we demonstrate the controlled formation of P<sub>4</sub> <sup>2-</sup&...

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Main Authors: Roy, MMD, Heilmann, A, Ellwanger, MA, Aldridge, S
Format: Journal article
Language:English
Published: Wiley 2021
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author Roy, MMD
Heilmann, A
Ellwanger, MA
Aldridge, S
author_facet Roy, MMD
Heilmann, A
Ellwanger, MA
Aldridge, S
author_sort Roy, MMD
collection OXFORD
description By employing the highly reducing aluminyl complex [K{(NON)Al}]<sub>2</sub> (NON=4,5-bis(2,6-diisopropylanilido)-2,7-di-tert-butyl-9,9-dimethylxanthene), we demonstrate the controlled formation of P<sub>4</sub> <sup>2-</sup> and P<sub>4</sub> <sup>4-</sup> complexes from white phosphorus, and chemically reversible inter-conversion between them. The tetra-anion features a unique planar π-bonded structure, with the incorporation of the K<sup>+</sup> cations implicit in the use of the anionic nucleophile offering additional stabilization of the unsaturated isomer of the P<sub>4</sub> <sup>4-</sup> fragment. This complex is extremely reactive, acting as a source of P<sup>3-</sup> : exposure to ammonia leads to the release of phosphine (PH<sub>3</sub> ) under mild conditions (room temperature and pressure), which contrast with those necessitated for the direct combination of P<sub>4</sub> and NH<sub>3</sub> (>5 kbar and >250 °C).
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spelling oxford-uuid:a48921bb-0ae7-4c11-a74f-be05627aa62a2022-03-27T02:34:26ZGeneration of a π-Bonded Isomer of [P4]4− by Aluminyl Reduction of White Phosphorus and its Ammonolysis to PH3Journal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:a48921bb-0ae7-4c11-a74f-be05627aa62aEnglishSymplectic ElementsWiley2021Roy, MMDHeilmann, AEllwanger, MAAldridge, SBy employing the highly reducing aluminyl complex [K{(NON)Al}]<sub>2</sub> (NON=4,5-bis(2,6-diisopropylanilido)-2,7-di-tert-butyl-9,9-dimethylxanthene), we demonstrate the controlled formation of P<sub>4</sub> <sup>2-</sup> and P<sub>4</sub> <sup>4-</sup> complexes from white phosphorus, and chemically reversible inter-conversion between them. The tetra-anion features a unique planar π-bonded structure, with the incorporation of the K<sup>+</sup> cations implicit in the use of the anionic nucleophile offering additional stabilization of the unsaturated isomer of the P<sub>4</sub> <sup>4-</sup> fragment. This complex is extremely reactive, acting as a source of P<sup>3-</sup> : exposure to ammonia leads to the release of phosphine (PH<sub>3</sub> ) under mild conditions (room temperature and pressure), which contrast with those necessitated for the direct combination of P<sub>4</sub> and NH<sub>3</sub> (>5 kbar and >250 °C).
spellingShingle Roy, MMD
Heilmann, A
Ellwanger, MA
Aldridge, S
Generation of a π-Bonded Isomer of [P4]4− by Aluminyl Reduction of White Phosphorus and its Ammonolysis to PH3
title Generation of a π-Bonded Isomer of [P4]4− by Aluminyl Reduction of White Phosphorus and its Ammonolysis to PH3
title_full Generation of a π-Bonded Isomer of [P4]4− by Aluminyl Reduction of White Phosphorus and its Ammonolysis to PH3
title_fullStr Generation of a π-Bonded Isomer of [P4]4− by Aluminyl Reduction of White Phosphorus and its Ammonolysis to PH3
title_full_unstemmed Generation of a π-Bonded Isomer of [P4]4− by Aluminyl Reduction of White Phosphorus and its Ammonolysis to PH3
title_short Generation of a π-Bonded Isomer of [P4]4− by Aluminyl Reduction of White Phosphorus and its Ammonolysis to PH3
title_sort generation of a π bonded isomer of p4 4 by aluminyl reduction of white phosphorus and its ammonolysis to ph3
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