Hydrogendiazid Synthese und Kristallstruktur von PPh4[N3HN3]

Hydrogen Diazide – Synthesis and Crystal Structure of PPh₄[N₃HN₃] PPh₄[N₃HN₃] has been prepared from PPh₄N₃ and Me₃SiN₃ by the reaction with water or ethanol forming colourless nonexplosive crystal needles, which were characterized by IR spectroscopy and by a crystal structure determination. Space group C2/c, Z = 12, lattice dimensions at –70 °C: a = 3782.4(3), b = 727.8(2), c = 2512.4(2) pm, β = 110.13(1)°, R = 0.0841. The [N₃HN₃]^– ion is characterized by an asymmetric N–H…N hydrogen bridge with a NN distance of 272(1) pm.