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Figure 4 Part of the crystal structure of compound 5b, showing the network of the connected [R_{4}^{4}](24) cyclic structures parallel to the ab plane and the π—π stacking inter­actions among the fluorene moieties (green dotted lines). For the sake of clarity, only the H-atoms involved in the bonding pattern (dashed lines) are drawn. [Symmetry codes: (i) −x, y + [{1\over 2}], −z + [{3\over 2}], (ii) x − [{1\over 2}], y, −z + [{3\over 2}], (iii) −x, −0.5 + y, 1.5-z and (iv) 0.5 + x, y, 1.5-z]

Journal logoCRYSTALLOGRAPHIC
COMMUNICATIONS
ISSN: 2056-9890
Volume 64| Part 10| September 2008| Page o1978
doi:10.1107/S1600536808029735
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