Figure 1
Asymmetric unit of MgSeO4·7H2O with anisotropic displacement ellipsoids drawn at the 50% probability level (75% for Mg and the selenate O atoms to aid visibility). Dashed rods indicate hydrogen bonds. The superscripts (i) and (ii) denote, respectively, the symmetry operations [1 − x, + y, − z] and [ − x, 1 − y, + z]. |