Refinement on F2	Primary atom site location: structure-invariant direct methods
R[F > 3σ(F)] = 0.038	Secondary atom site location: difference Fourier map
wR(F) = 0.086	Hydrogen site location: difference Fourier map
S = 1.77	H atoms treated by a mixture of independent and constrained refinement
4061 reflections	Weighting scheme based on measured s.u.'s w = 1/(σ2(I) + 0.0004I2)
258 parameters	(Δ/σ)max = 0.014
0 restraints	Δρmax = 0.46 e Å−3
52 constraints	Δρmin = −0.23 e Å−3