L. Xue, Yong-jun Han, G. Zhao
Jun 10, 2011
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Influential Citations
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Journal
Journal of Chemical Crystallography
Abstract
A new hydrazone derivative, N′-(5-bromo-2-hydroxybenzylidene)-2-fluorobenzohydrazide (BFBH), has been prepared and crystallized from absolute methanol and 95% ethanol, respectively, yielding unsolvated and monohydrate forms of the compound, viz. BFBH (1) and BFBH·H2O (2). The two forms of the compound were characterized by elemental analysis, IR spectra, 1HNMR spectra, and X-ray single crystal structural determination. The unsolvated form of the compound crystallizes in the monoclinic space group P21/c with unit cell dimensions a = 6.879(1) Å, b = 28.911(2) Å, c = 8.724(1) Å, β = 127.685(2)º, V = 1373.1(3) Ǻ3, Z = 4, R1 = 0.0569, and wR2 = 0.1352. The monohydrate forms of the compound crystallizes in the monoclinic space group P21/c with unit cell dimensions a = 14.873(3) Å, b = 7.265(1) Å, c = 13.043(2) Å, β = 96.281(2)º, V = 1400.9(4) Ǻ3, Z = 4, R1 = 0.0402, and wR2 = 0.0890. The two structures are similar to each other, except for the presence of a water molecule in (2).Graphical AbstractA new hydrazone derivative, N′-(5-bromo-2-hydroxybenzylidene)-2-fluorobenzohydrazide, has been prepared and crystallized from absolute methanol and 95% ethanol, respectively, yielding unsolvated and monohydrate forms of the compound.