Figure 7
Quantum-refined structures of homocitrate in Mo nitrogenase: 1Ha with the small QM system in a vacuum (a), ɛ = 4 (b) and ɛ = 80 (c); 1Ha with the large QM system in a vacuum (d), ɛ = 4 (e) and ɛ = 80 (f); 2H with the small QM system in a vacuum (g), ɛ = 4 (h) and ɛ = 80 (i); 2H with the large QM system in a vacuum (j), ɛ = 4 (k) and ɛ = 80 (l). The mFo − DFc difference maps are contoured at +2.5σ (green) and −2.5σ (red). |