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In the title compound, C28H23BrN2OS, the dihedral angles formed by the imidazole ring with the 5-bromo­thio­phenyl and phenyl rings are 76.90 (8), 34.02 (10) and 80.93 (11)°, respectively. The chiral centre maintains the S configuration of the L-phenyl­alaninol starting material. In the crystal, mol­ecules are linked by O—H...N hydrogen bonds, forming chains running parallel to the a-axis direction.

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In the title compound, C34H28N2S2, the central imidazole ring (r.m.s. deviation = 0.0015 Å) forms dihedral angles of 55.7 (3), 17.94 (11) and 86.27 (11)°, respectively, with the mean planes of the attached thienyl and two phenyl substituents. The thienyl ring shows ring-flip disorder [occupancy ratio = 0.647 (2):0.353 (2)]. The chiral centre maintains the S configuration of the L-phenyl­alaninol starting material. Intra- and inter­molecular C—H...S hydrogen bonds involving the disordered thienyl ring are observed.
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