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Figure 1 The asymmetric unit of (I) showing 50% probability displacement ellipsoids and the atom-numbering scheme. Atoms I2A and I4A were generated by symmetry codes 1 − x, y, −z and 1 − x, y, 1 − z, respectively whereas one of the three H atoms on each of the three methyl groups are generated by symmetry code x, −y, z. |