Figure 11
The structure of 9, showing (a) a disodium unit linked by a pair of bridging water molecules, (b) the packing arrangement, viewed down the a axis (H atoms have been omitted), and (c) the close-packed alternating stacking of the H2hba and Hhba− ligands. Colour code: Na yellow, carboxylate and phenolate O red, water O green, C black and H pale pink. |