Figure 6
A partial view of the crystal packing of (II) in which the (N—H⋯)2O=P hydrogen bonds (black dashed lines) connect symmetry-independent molecules into a one-dimensional chain along the a axis, forming an R21(6) ring motif. The symmetry-independent molecules are shown in different colours (green, yellow and purple) and H atoms bonded to C atoms have been omitted for clarity. The P(O)(NH)2 segments involved in hydrogen bonding are shown as `capped sticks'. |