Figure 4
The structure of 2, showing (a) Li4 units containing four- and six-membered rings, (b) Li4 units within a hydrophilic sheet, (c) neighbouring Li4 units linked to each other in adjacent sheets that are separated by the hydrophobic sections of hba2− linkers and (d) the hba2− units packed in an edge-to-face pattern. H atoms have been omitted in parts (a), (b) and (c). Colour code: Li purple, carboxylate and phenolate O red, water O green, C black and H pale pink. |