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The Metaphosphite (PO2 - ) Anion as a Ligand.

ABSTRACT: The utilization of monomeric, lower phosphorous oxides and oxoanions, such as metaphosphite (PO2 - ), which is the heavier homologue of the common nitrite anion but previously only observed in the gas phase and by matrix isolation, requires new synthetic strategies. Herein, a series of rhenium(I-III) complexes with PO2 - as ligand is reported. Synthetic access was enabled by selective oxygenation of a terminal phosphide complex. Spectroscopic and computational examination revealed slightly stronger ?-donor and comparable ?-acceptor properties of PO2 - compared to homologous NO2 - , which is one of the archetypal ligands in coordination chemistry.

SUBMITTER: Abbenseth J 

PROVIDER: S-EPMC7756739 | biostudies-literature | 2020 Dec

REPOSITORIES: biostudies-literature

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The Metaphosphite (PO<sub>2</sub> <sup>-</sup> ) Anion as a Ligand.

Abbenseth Josh J   Wätjen Florian F   Finger Markus M   Schneider Sven S  

Angewandte Chemie (International ed. in English) 20201025 52

The utilization of monomeric, lower phosphorous oxides and oxoanions, such as metaphosphite (PO<sub>2</sub> <sup>-</sup> ), which is the heavier homologue of the common nitrite anion but previously only observed in the gas phase and by matrix isolation, requires new synthetic strategies. Herein, a series of rhenium(I-III) complexes with PO<sub>2</sub> <sup>-</sup> as ligand is reported. Synthetic access was enabled by selective oxygenation of a terminal phosphide complex. Spectroscopic and compu  ...[more]

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