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The Metaphosphite (PO 2 − ) Anion as a Ligand
Author(s) -
Abbenseth Josh,
Wätjen Florian,
Finger Markus,
Schneider Sven
Publication year - 2020
Publication title -
angewandte chemie
Language(s) - English
Resource type - Journals
eISSN - 1521-3757
pISSN - 0044-8249
DOI - 10.1002/ange.202011750
Subject(s) - chemistry , rhenium , ligand (biochemistry) , phosphide , matrix isolation , monomer , ion , nitrite , homologous series , crystallography , stereochemistry , inorganic chemistry , molecule , catalysis , organic chemistry , nitrate , biochemistry , polymer , receptor
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. Herein, 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.
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