Photolytic Reductive Elimination of White Phosphorus from a Mononuclear cyclo‐P4 Transition Metal Complex. (14th November 2018)

• Record Type: Journal Article
• Authors: Mandla, Kyle A.; Moore, Curtis E.; Rheingold, Arnold L.; Figueroa, Joshua S.
• Is Part Of: Angewandte Chemie. Volume 131:Number 6(2019)
• Page Start: 1793
• Page End: 1797
• Publication Date: 2018-11-14
• Subjects: Hauptgruppenchemie -- Molybdän -- Photochemie -- Photoeliminierungen -- Weißer Phosphor; Chemistry -- Periodicals; 540
• DOI: 10.1002/ange.201809042
• Languages: English
• ISSNs: 0044-8249

Abstract

Abstract: Elemental white phosphorus (P4 ) is well recognized as a critical precursor to organophosphorus compounds. However, regulatory constraints stemming from the toxic and pyrophoric nature of white phosphorus have significantly limited its accessibility. Herein is described a new approach to white phosphorus storage and release based on a unique example of photolytic reductive elimination of the tetrahedral P4 molecule from a mononuclear cyclo‐P4 molybdenum complex. The latter functions as an air‐stable, chemically‐deactivated source of white phosphorus. The system features efficient photo‐release of white phosphorus using inexpensive violet LED sources. Additionally, high‐yield recapture of unspent white phosphorus by the molybdenum center can be achieved by post‐photolysis heating at convenient temperatures. Abstract : Spot an für Phosphor : Pyrophorer und giftiger weißer Phosphor (P4 ) ist schwer zu handhaben und zu transportieren. Ein neues System zur Speicherung und Freisetzung von weißem Phosphor wird vorgestellt, das auf einer photolytischen reduktiven Eliminierung des P4 ‐Moleküls aus einem einkernigen cyclo ‐P4 ‐Übergangsmetallkomplex beruht.