The structures of [MoN(N3)(Ph2P(CH2)2PPh2)2] (I) and [MoBr(NH)(Ph2P(CH2)2PPh2] Br·MeOH (II) have been determined. Crystal data (I): Space Group Pl. a = 11540(2), b = 13.102(2), c = 9.612(2) Å, α = 99.58(1), β = 108.88(1), γ = 110.46(1)°, V = 1211.50 Å3, Z = 1;2731 reflections to give R = 0.061. Crystal data (II): Space Group P21/n; a = 18.111(2) Å, b = 16.548(3), Å, c = 18.064(2) Å, α = 90.0°, β = 105.30(1)°, γ = 90.0°; V = 5395.15 Å3; Z = 4; 1837 reflections to give R = 0.054. In I the geometry is pseudooctahedral and the Mo-nitride distance is unusually long at 1.79(2) Å. The trans azido-group is nearly linear (
