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The crystal structure of 1,2:3,4-dibenzanthracene, C22H14, was solved by simulated annealing from laboratory X-ray powder diffraction data collected at room temperature to 1.8 Å resolution. Subsequent Rietveld refinement yielded an Rwp value of 0.036. The molecules crystallize in space group P21 with two independent molecules in the asymmetric unit which pack in a stacked arrangement along the b axis.

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The crystal structure of hydro­chloro­thia­zide form II, C7H8ClN3O4S2, was solved by simulated annealing from laboratory X-ray powder diffraction data collected at room temperature to 1.76 Å resolution. Subsequent Rietveld refinement yielded an Rwp of 0.0376 to 1.49 Å resolution. The molecules crystallize in the space group P21/c with one molecule in the asymmetric unit. The structure is stabilized by three N—H...N and one N—H...O hydrogen-bonded intermolecular interaction.

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A polycrystalline sample of the title compound, C7H8ClN3O4S2·C3H6O2, was produced during an automated parallel crystallization search on hydro­chloro­thia­zide (HCT). The crystal structure was solved by simulated annealing from laboratory X-ray powder diffraction data collected at room temperature to 1.75 Å resolution. Subsequent Rietveld refinement yielded an Rwp value of 0.0182 to 1.54 Å resolution. The compound crystallizes with one mol­ecule of HCT and one of methyl acetate in the asymmetric unit and displays an extensive hydrogen-bonding network.
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