... C6H5), 1 .59 (s, 15H, 5. 05s 25 1974sh, 1948w Cp*), -13. 95 (dd, 1H, 2JP-H = 11 .55 Hz; JHH = 3.3 Hz, OsHOs), -16.87 (d, 1H, JHH = 3.3 Hz, IrHOs) 2060vs, 2005sh, 1991vs, 7.83-7.76 (m, 15H, C6H5), ... structure and refinement data are given in Tables 5. 5 and 5. 6 193 Table 5. 2 Experimental conditions used for the synthesis of compounds 23-26 Products and isolated yields Amount of Amount of PPh3Se ... 1371.9 658 1377. 958 51 29 .50 29.70 2.20 2. 25 1464.80 14 65. 35 - - - - 151 4.8414 151 4.84 252 2024vs, 2008m, 2000m, = 3.3 Hz, OsHOs), -16.90 (d, 1H, 2JHH 1989s, 1967w, 1 950 m = 3.3 Hz, IrHOs) 2 057 s, 2038vs,...