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Heteroleptic diphosphenes and arsaphosphenes bearing neutral and anionic N-heterocyclic carbenes

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Abstract

The reaction of the phosphorus and arsenic dihalides (WCA-IDipp)ECl2 (E = P, As) that bear an anionic N-heterocyclic carbene ligand with a weakly coordinating borate moiety (WCA = B(C6F5)3, IDipp = 1,3-bis(2,6-diisopropylphenyl)imidazolin-2-ylidene) with (IDipp)PSiMe3 afforded the monochlorides (WCA-IDipp)E(Cl)P(IDipp), which can be transformed into the cationic dipnictenes [(WCA-IDipp)EP(IDipp)][GaCl4] or neutral radicals [(WCA-IDipp)EP(IDipp)] by treatment with GaCl3 or reduction with 1,4-bis(trimethylsilyl)-1,4-dihydropyrazine.

Graphical abstract: Heteroleptic diphosphenes and arsaphosphenes bearing neutral and anionic N-heterocyclic carbenes

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Publication details

The article was received on 24 Jul 2019, accepted on 13 Aug 2019 and first published on 13 Aug 2019


Article type: Communication
DOI: 10.1039/C9CC05739K
Chem. Commun., 2019, Advance Article

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    Heteroleptic diphosphenes and arsaphosphenes bearing neutral and anionic N-heterocyclic carbenes

    L. P. Ho, M. Zaretzke, T. Bannenberg and M. Tamm, Chem. Commun., 2019, Advance Article , DOI: 10.1039/C9CC05739K

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