Fig. 2.
(Part of the crystal structure of (I) showing the formation of C(5) chains which are running parallel to the [100] direction. [Symmetry codes: (i) 1/2 + x, 1/2 - y, 2 - z; (ii) 1 + x, y, z; (iii) -1/2 + x, 1/2 - y, 2 - z; (iv) -1 + x, y, z].
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