1H NMR (400 MHz, CDCl3) δ 7.83 (s, 1H), 7.58 – 7.49 (m, 4H), 7.47 – 7.39 (m, 5H). 13C{H} NMR (101 MHz, CDCl3) δ 142.22, 136.40, 129.23, 126.39, 126.27, 125.31, 124.66, 120.53. m/z (GC-MS): 242。