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The reaction of 4-(p-fluobenzoyl)-2,5-dihydro-3-methyl-1-phenyl pyrazol-5-one with thiosemicarbazide in MeOH followed by recrystallization in EtOH gave rise to yellowish lamellar crystals of 4(p-fluo-α-aminothiocarbonyl hydrazonobenzal)-2,5-dihydro-3-methyl-1-phenyl pyrazol-5-one 1. It crystallizes in orthorhombic, space group Pbca with a = 18.445(4), b = 11.987(2), c = 19.249(4) , V = 4256.1(18) 3, Z = 8, Mr = 415.49, Dc = 1.297 g/cm3, T = 296(2) K, F(000) = 1744, μ(MoKα) = 0.186 cm-1, R = 0.0521 and wR = 0.1211 for 1661 observed reflections with I > 2σ(I). The compound was structurally characterized by elemental analyses, IR and 1H NMR. The intermolecular hydrogen bonds are present and a two-dimensional framework is formed by two intermolecular hydrogen bonds in the (0 0 1) plane.
The reaction of 4- (p-fluobenzoyl) -2,5-dihydro-3-methyl-1- phenylpyrazol-5-one with thiosemicarbazide in MeOH followed by recrystallization in EtOH gave rise to yellowish lamellar crystals of 4 (p-fluo -α-aminothiocarbonyl hydrazonobenzal) -2,5-dihydro-3-methyl-1-phenylpyrazol-5-one 1. It crystallizes in orthorhombic space group Pbca with a = 18.445 (4), b = (4) , V = 4256.1 183, Z = 8, Mr = 415.49, Dc = 1.297 g / cm3, T = 296 K, F000 = 1744, ) = 0.186 cm-1, R = 0.0521 and wR = 0.1211 for 1661 observed reflections with I> 2σ (I). The compound was structurally characterized by elemental analyzes, IR and 1H NMR. The intermolecular hydrogen bonds are present and a two- dimensional framework is formed by two intermolecular hydrogen bonds in the (0 0 1) plane.