The structure of the title compound (I), has been determined by three-dimensional X-ray diffraction. Crystals are orthorhombic, a= 17.22(8), b= 4.25(5), c= 22.04(9)Å, space group Pna21, with Z= 4. The structure was refined by least-squares based on 1 143 visually estimated intensities, to R 0.075. The dihedral angle between the two substituted phenyl rings is 117.9°.
F. Nowshad and Mazhar-Ul-Haque, J. Chem. Soc., Perkin Trans. 2, 1976, 623 DOI: 10.1039/P29760000623
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