1H NMR (400 MHz, CDCl3) δ 7.74 (s, 1H), 7.65 (s, 2H), 7.62 – 7.49 (m, 5H), 7.45 – 7.35 (m, 4H). 13C{H} NMR (101 MHz, CDCl3) δ 142.66, 140.44, 134.69, 130.01, 129.40, 127.48, 127.29, 126.55, 125.87, 125.32. m/z (GC-MS): 298。