“…Compound 6a: brown powder; 1 H NMR (400 MHz, CDCl 3 ) δ 6.46−6.48 (1H, m), 6.58−6.62 (1H, m), 6.82−6.86 (2H, m), 7.02− 7.03 (2H, m), 7.10−7.11 (3H, m), 7.40−7.47 (8H, m), 7.58−7.70 (14H, m), 8.05 (1H, m); 13 C NMR (100 MHz, CDCl 3 ) δ 117. 5, 118.4, 118.7, 119.6, 127.1, 127.3, 127.6, 127.8, 127.9, 128.8, 129.3, 129.5, 130.3, 130.4, 130.8, 133.7, 133.8, 134.0, 134.1, 134.8, 135.5, 136.0, 138.0, 139.1, 141.7, 141.8, 145.5, 145.6, 146.8, 146.9; 31 General Procedure for Dimerization of Phenylacetylene by (η 5 -C 5 H 7 )(PPh 3 ) 2 RuCl.…”