Homogeneous CO Hydrogenation: Ligand Effects on the Lewis Acid ...

= 10.2, 16.4, 2H, Ph 2PCH 2CH 2B(C 8H 14)), 1.52-1.62 (m, 4H), 1.68 (br s, 2H), 1.77-1.88 (m, 6H),
3.00 (dd, J = 7.3, 15.6, 2H Ph 2PCH 2CH 2B(C 8H 14),7.46-7.52 (m, 6H), 7.54-7.62 (m, 19H). 31 P{ 1 H}
NMR (CD 2Cl 2, 121 MHz): δ 0.6 (d, J PP = 80.6 Hz, 1P), 5.7 (d, J PP = 80.0 Hz, 1P). 19 F NMR
(CD 2Cl 2, 282 MHz): δ -77.9. 11 B{ 1 H} NMR (CD 2Cl 2, 160 MHz): δ 88.5. 13 C{ 1 H} NMR (CD 2Cl 2,
125 MHz): δ 20.97 (br, Ph 2PCH 2CH 2B(C 8H 14)), 23.51, 28.68 (d, J PC = 30.6 Hz
-
Ph2PCH2CH2B(C8H14)), 32.0 (br), 33.71, 121.55 (q, JCF = 320 Hz, CF3SO3 ), 129.72 (d, JPC = 10.5
Hz), 130.07 (d, J PC = 11.0 Hz), 130.20, 132.26 (dd, J PC = 2.1, 22.1 Hz), 132.35 (d, J PC = 9.8 Hz),
132.54 (dd, J PC = 2.4, 12.2 Hz), 132.76, 133.23 (d, J PC = 11.3 Hz), 133.81 (d, J PC = 11.0 Hz),
185.96 (t, J PC = 7.5 Hz, <strong>CO</strong>). IR (CH 2Cl 2): υ <strong>CO</strong>, 2000 cm -1 . HRMS (TOF ES + ): m/z cald for
C 44H 43BO 4P 2Re: 895.2297. Found: 895.2271.
Figure S52. 1 H NMR.
S47