Figure 12
Crystal structures of boron. (a) α-B12; (b) γ-B28; (c) novel metastable B52 phase, space group Pnn2, a = 8.868, b = 8.777, c = 5.000 Å. B1(0.5777,0.7728,0), B2(0.9187,0.7321,0.3222), B3(0.7464,0.7488,0.4978), B4(0.5902,0.6690,0.3087), B5(0.6243,0.8678,0.3055), B6(0.8209,0.9090,0.3202), B7(0.8698,0.6288,0.0229), B8(0.7835,0.5798,0.3273), B9(0.6684,0.5795,0.0182), B10(0.7190,0.9189,0.0056), B11(0.8991,0.8309,0.0115), B12(0.7461,0.7461,0.8302), B13(0,0,0.7529), B14(0,0.5,0.9161). |