Figure 3
The principal hydrogen-bonding interactions (dashed lines) in (VI). Displacement ellipsoids are drawn at the 50% probability level. The H5 and H8 atoms and their symmetry equivalents are shown as small spheres of arbitrary radii. All other H atoms have been removed, and only the (a) C5—H5⋯O1ii and (b) C8—H8⋯O2iii interactions to the central MO4 unit, and their symmetry-related counterparts, are shown for clarity. [Symmetry codes: (ii) x, −y + , z + ; (iii) x + 1, −y + , z + .] |