Figure 1
Asymmetric units of the crystal structures of 1 (top) and 2 (bottom) displaying the atom-labelling schemes, and in transparent mode the symmetry-related second half completing the dimeric building block that defines the repeating units of the coordination polymeric, secondary structure of the compounds[(symmetry code (i) 1 − x, −y, 1 − z]. The direction of secondary bonding to atoms of the neighbouring moieties is indicated by thin sticks. Displacement ellipsoids are drawn at the 50% probability level, hydrogen atoms are drawn with an arbitrary radius. |