Fig. 3. Reaction of 1 with O2 to form 2. Vertices of the green octahedra represent Zr atoms; purple, red, blue, and gray spheres represent Mn, O, N, and C atoms, respectively; H atoms are omitted for clarity. Selected interatomic distances (Å) for 1: Mn···N4 0, Mn–N 1.998(5); for 2: Mn···N4 0.80(2), Mn–O 1.76(3), Mn–N 2.170(9).
