¹H NMR (400 MHz, CDCl₃) δ 7.73 (s, 1H), 7.65 (d, J = 7.7 Hz, 4H), 7.60 – 7.50 (m, 3H), 7.33 (d, J = 8.1 Hz, 4H). ¹³C{H} NMR (101 MHz, CDCl₃) δ 148.87, 140.60, 139.68, 129.46, 128.56, 126.43, 126.02, 121.30, 120.54 (d, J = 257.2 Hz). m/z (GC-MS): 398。