Journal of the American Chemical Society · 2024 · 17 citations · 59 references
Reaction of the pincer-type ligand L<sub>3</sub> supported complex [L<sub>3</sub>PbBr][BArF<sub>24</sub>] (<b>1</b>) with Li[(C(═N<sub>2</sub>)TMS)] furnishes [L<sub>3</sub>Pb(C(═N<sub>2</sub>)TMS)][BArF<sub>24</sub>] (<b>2</b>). Diazo-compound <b>2</b> eliminates dinitrogen upon irradiation affording formal plumba-alkyne <b>3</b>, which persists in cold fluoroarene solutions. Variable temperature UV/Vis and NMR spectroscopies in combination with quantum-chemical calculations identify <b>3</b> as a metal-substituted triplet carbene. In-crystallo irradiation of [L<sub>3</sub>Pb(C(═N<sub>2</sub>)TMS)(tol)][BArF<sub>24</sub>] (<b>2</b>·tol) provides a snapshot of intermolecular C-H bond insertion with toluene (<b>4</b>).
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Main-group elements as transition metals
Philip P. Power · Nature · 2010 · 1.6K citations
Lihung Pu, Brendan Twamley, Philip P. Power · Journal of the American Chemical Society · 2000 · 365 citations