The Metaphosphite (PO2-) Anion as a Ligand.

The Metaphosphite (PO2-) Anion as a Ligand.
Angew Chem Int Ed Engl. 2020 Sep 16;:
Authors: Abbenseth J, Wätjen F, Finger M, Schneider S
Abstract
The utilization of monomeric, lower phosphorous oxides and oxoanions, such as metaphosphite (PO 2 - ), 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. Here, a series of rhenium(I-III) complexes with PO 2 -  as ligand is reported. Synthetic access was enabled by selective oxygenation of a terminal phosphide complex. Spectroscopic and computational examination revealed slightly stronger  σ -donor and comparable  π -acceptor properties of PO 2 -  compared to homologous NO 2 - , which is one of the archetypal ligands in coordination chemistry.
PMID: 32936501 [PubMed - as supplied by publisher]

Source: Angewandte Chemie - September 15, 2020 Category: Chemistry Authors: Abbenseth J, Wätjen F, Finger M, Schneider S Tags: Angew Chem Int Ed Engl Source Type: research