Figure 5
Crystal structure of (Nax□1 − x)5[MnO2]13, x = 0.80. The [MnO2] framework is built up by MnO6 and MnO5 polyhedra (sky-blue) leaving three types of channels along b, two large S-shaped channels each containing < 2 Na, four egg-shaped channels containing < 1 Na each, and two small six-ring channels which contain again < 1 Na each (split on 2 positions). Image created using VESTA (Momma & Izumi, 2011). |