Facile Synthesis of AsP3
Cossairt B.M., Diawara M.C., and Cummins C.C., Science, 2009, 323, 602.
Preparative synthesis of the tetraatomic AsP3 molecule has been accomplished for the first time. The+ synthesis of this interpnictide involves treatment of an anionic cyclo-P3 complex of niobium with AsCl3 to form NaCl, niobium(V) dichloride (Cl2Nb(ODipp)3(THF), where Dipp = 2,6-diisopropylphenyl), and AsP3 in good yield. The identity of AsP3 is confirmed by 31P NMR spectroscopy, mass spectrometry, laser Raman spectroscopy, and through initial reactivity studies.
Treatment of (N2)[Mo(CO)3(PiPr3)2]2 with AsP3 results in displacement of N2 to give rise to P-bound (AsP3)Mo(CO)3(PiPr3)2 in high isolated yield. (AsP3)Mo(CO)3(PiPr3)2, the first metal complex of AsP3, has been fully characterized by spectroscopic, analytical, and crystallographic methods. Exploration of the generality of EP3 synthesis is currently being explored and preliminary experiments have led to the observation of As2P2, As3P, and SbP3.