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. 2021 Mar 15;60(12):6400-6402.
doi: 10.1002/anie.202016052. Epub 2021 Feb 11.

An Efficient Photochemical Route Towards Triplet Ethynylphosphinidene, HCCP

Arun-Libertsen Lawzer  1 , Thomas Custer  1 , Jean-Claude Guillemin  2 , Robert Kołos  1
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Free article

An Efficient Photochemical Route Towards Triplet Ethynylphosphinidene, HCCP

Arun-Libertsen Lawzer et al. Angew Chem Int Ed Engl. .
Free article

Abstract

While the archetypal free phosphinidene, H-P, has been studied for over a century, reports on uncomplexed, univalent phosphorus compounds are very sparse. Here we demonstrate production of HCCP in solid argon through the UV-induced rearrangement and subsequent dehydrogenation of phosphapropyne, CH3 CP. Migration of H atoms along the CCP backbone of CH3 CP resulted in production of the previously unobserved species 1-phosphapropadiene, CH2 =C=PH, followed by ethynylphosphine, HCCPH2 .

Keywords: matrix isolation; phosphorus; photochemistry; rearrangement.

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References

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