Synthesis and structure refinement of the zinc hydroxide boracite: Zn3B7O13(OH)

The new zinc borate Zn3B7O13(OH) crystallizes trigonally in the space group R3c(no. 161) with the lattice parameters a= 849.76(3), c= 2099.8(2) pm, V= 1.3131(2) nm3, and six formula units per unit cell (Z= 6). It was synthesized at high-pressure/high-temperature conditions in a multianvil device. Single-crystal and powder X-ray diffraction experiments were conducted.