Refinement on F2	Primary atom site location: structure-invariant direct methods
Least-squares matrix: full	Secondary atom site location: difference Fourier map
R[F2 > 2σ(F2)] = 0.032	w = 1/[σ2(Fo2) + (0.044P)2 + 0.3679P] where P = (Fo2 + 2Fc2)/3
wR(F2) = 0.081	(Δ/σ)max < 0.001
S = 1.17	Δρmax = 1.95 e Å−3
181 reflections	Δρmin = −2.53 e Å−3
10 parameters	Extinction correction: SHELXTL (Sheldrick, 2008), Fc*=kFc[1+0.001xFc2λ3/sin(2θ)]-1/4
0 restraints	Extinction coefficient: 0.038 (9)