Correction: K<sub>2</sub>[B<sub>4</sub>O<sub>5</sub>(OH)<sub>4</sub>]·H<sub>2</sub>O and K<sub>2</sub>[B<sub>4</sub>O<sub>5</sub>(OH)<sub>4</sub>]: two new hydrated potassium borates with isolated [B<sub>4</sub>O<sub>5</sub>(OH)<sub>4</sub>]<sup>2−</sup> units and different structural frameworks
New journal of chemistry