Synthesis and reactivity of copper carbyne anion complexes

Wei，Rui; Wang，Xin Feng; Hu，Chaopeng; Liu，Liu Leo

2023-04-01

10.1038/s44160-022-00225-y

Nature Synthesis   Impact Factor & Quartile

2731-0582

Carbyne anions (R–C) are one of the least explored and most poorly understood subvalent carbon species and, so far, have only been observed in the gas phase. In this study, we report the synthesis and isolation of copper phosphinocarbyne anion complexes. The combination of a π-donor substituent and an electropositive transition metal enables the isolation of copper carbyne anion complexes at room temperature. The electronic structure of the isolated copper phosphinocarbyne anion complexes was probed using density functional theory calculations. These calculations reveal the dominance of ionic interactions between the copper and carbon atoms and the singlet ground state of the phosphinocarbyne anion, featuring a planar phosphorus atom and a short phosphorus–carbon bond. These complexes exhibit the reactivity of a carbyne anion, as demonstrated through the synthetic transformations to form silyl- and germanyl-substituted carbenes, diazaphospholidinyl-substituted alkenes and ethenimines. [Figure not available: see fulltext.]

English

First ; Corresponding

National Natural Science Foundation of China-Yunnan Joint Fund[22101114];Science, Technology and Innovation Commission of Shenzhen Municipality[JCYJ20220530114806015];

2-s2.0-85169073463

Scopus

Department of Chemistry,Shenzhen Grubbs Institute and Guangdong Provincial Key Laboratory of Catalysis,Southern University of Science and Technology,Shenzhen,China

Wei，Rui,Wang，Xin Feng,Hu，Chaopeng,et al. Synthesis and reactivity of copper carbyne anion complexes[J]. Nature Synthesis,2023,2(4):357-363.

Wei，Rui,Wang，Xin Feng,Hu，Chaopeng,&Liu，Liu Leo.(2023).Synthesis and reactivity of copper carbyne anion complexes.Nature Synthesis,2(4),357-363.

Wei，Rui,et al."Synthesis and reactivity of copper carbyne anion complexes".Nature Synthesis 2.4(2023):357-363.