An Air-Stable Storage Compound for White Phosphorus: Reversible Addition to a Stannylene and Chemical Release of P4

Beate G Steller; Clara A Roller; Michaela Flock; Roland C Fischer

doi:10.1002/asia.202400168

An Air-Stable Storage Compound for White Phosphorus: Reversible Addition to a Stannylene and Chemical Release of P4

Chem Asian J. 2024 Apr 5:e202400168. doi: 10.1002/asia.202400168. Online ahead of print.

Authors

Beate G Steller¹, Clara A Roller¹, Michaela Flock¹, Roland C Fischer²

Affiliations

¹ Graz University of Technology, Institute of Inorganic Chemistry, Stremayrgasse 9/V, 8010, Graz, AUSTRIA.
² Technische Universitaet Graz, Institut fuer Anorganische Chemie, Stremayrgasse 9/5, 8010, Graz, AUSTRIA.

PMID: 38578726
DOI: 10.1002/asia.202400168

Abstract

Controlled insertion into a single P-P bond of white phosphorus (P4) was achieved by employing a diaryl stabilized stannylene, Ar*2Sn (Ar* = 2,6-bis(benzhydryl)-4-iPr-phenyl). Conversions of the stannylene with P4 gave a non-pyrophoric, air-stable storage compound, which releases P4 quantitively upon irradiation with light (354 or 455 nm). Alternatively, the phosphorus cage is detached by reacting the storage compound with PhChChPh (Ch = Se, Te). Despite the recent advances in the directed conversion of P4 using main group element compounds, Ar*2Sn constitutes only the second structurally characterized example of a stannylene capable of performing controlled, reversible addition and release of white phosphorus.

Keywords: Tetrylenes P4 Activation Heteronuclear NMR Spectrocopy Xray structure analysis Stannylene.