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The crystal structure of the title compound (C22H17BrO5 , Mr = 441.27) has been determined by single-crystal X-ray diffraction. The crystal is of orthorhombic system, space group Pna21 with a = 11.76(1), b = 14.58(1), c = 11.52(1), V = 1973.93 , Z = 4, Dc = 1.485 g/cm3 , F(000) = 896, μ(MoKα) = 2.113 mm-1 , the final R = 0.0394 and wR = 0.0809 for 3918 observed reflections (Ⅰ > 2 (Ⅰ)). The single-crystal X-ray diffraction data indicate that the C=C bond is in an E-configuration. The intramolecular C(10)-H(10B)···O(4) and intermolecular C(17)-H(17)···O(4) hydrogen bonds contribute to the stability of the structure.
The crystal structure of the title compound (C22H17BrO5, Mr = 441.27) has been determined by single-crystal X-ray diffraction. The crystal is of orthorhombic system, space group Pna21 with a = 11.76 (1), b = 14.58 (d = 1.485 g / cm3, F (000) = 896, μ (MoKα) = 2.113 mm-1, the final R = 0.0394 and wR = 0.0809 for 3918 observed reflections (I> 2 (I)). The single-crystal X-ray diffraction data indicated that the C = C bond is in an E-configuration. The intramolecular C (10) -H ··· O (4) and intermolecular C (17) -H (17) ··· O (4) hydrogen bonds contribute to the stability of the structure.