Isolation of N-Heterocyclic Carbene-Stabilized Phosphorus and Arsenic Mononitride |
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Authors: | Dirk Bockfeld Matthias Tamm |
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Institution: | Institut für Anorganische und Analytische Chemie, Technische Universität Braunschweig, Hagenring 30, 38106 Braunschweig, Germany |
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Abstract: | Phosphorus mononitride (PN) and arsenic mononitride (AsN) species supported by two different N-heterocyclic carbenes were prepared: The reaction of (IDipp)NSiMe3] IDipp = 1,3-bis(2,6-diisopropylphenyl)imidazolin-2-ylidene] with PCl3 or AsCl3 afforded the dichlorides (IDipp)NECl2] (E = P, As) and, after the addition of IMes IMes = 1,3-bis(2,4,6-trimethylphenyl)imidazolin-2-ylidene], the cationic chloro species (IDipp)NE(Cl)(IMes)]Cl (E = P, As), which were reduced with potassium graphite (KC8) to yield the neutral compounds (IMes)PN(IDipp)] and (IMes)AsN(IDipp)], which exhibit the typical trans-bent geometry of dicarbene-dielement species in the solid state according to single-crystal X-ray diffraction. |
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Keywords: | N-heterocyclic carbenes Phosphorus mononitride Arsenic mononitride Main group elements |
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