. Hz, 133.8 (d, J CP ) 11.3 Hz), 131.4 (d, J CP ) 11.3 Hz), vol.130

. Hz, 127.2 (d, J CP ) 9.8 Hz), vol.120, p.293

. Hz, 2 (d, 2 J PP ) 213 Hz, PPh 3 ) ppm. MS (FAB, MNBA): m/z (%), vol.49, p.682

. Anal and . Calcd, Complex 2 (90 mg, 0.13 mmol) and diphenylacetylene (27 mg, 0.15 mmol) were dissolved in 10 mL of toluene in a Schlenk flask connected with a reflux condenser. The solution was heated at 110°C for 3 h, cooled to room temperature, and concentrated under vacuum. The resulting complex was precipitated with pentane and was then filtered, washed with pentane, and weighed (78% yield). Slow diffusion of pentane into a concentrated solution of 3, C 66.00, H 4.26. Found: C 65.10, H 4.00, p.22

, CD 2 -Cl 2 , 293 K): ? 2.74 (t, 1H, J HP ) 7.0 Hz, CdCH), 6.53 (d, 2H, J HH ) 5.0 Hz, THF): 1931(vs) cm -1 . 1 H NMR (500 MHz

, 6 Hz), 148.5 (dd, J CP ) 40.3, 6.3 Hz, CO enone ), 145.8 (d, J CP ) 21.4 Hz), 143.3 (d, J CP ) 3.8 Hz), J CP ) 12, vol.138, issue.3

. Hz, 2 (s), 133.3 (d, J CP ) 11.3 Hz), 132.1 (d, J CP ) 11.3 Hz), 131.8 (d, J CP ) 10.1 Hz), 129.9 (d, J CP ) 1.3 Hz), 129.5 (d, J CP ) 1.3 Hz), 129.2 (d, 134.6 (d, J CP ) 28.9 Hz), vol.134

, CD 2 Cl 2 , 293 K): ? 46.9 (s, PPh 3 ), 30.9 (s, PPh 2 -C 6 H 4 CO) ppm, MS (FAB, MNBA): m/z (%), p.860

, Anal. Calcd (%) for, vol.362