Table 1. Spectroscopic Data for Mo Complexes and DPPh and DPTol Ligands.
compound | νCO (cm–1) | 31P{1H} NMR (ppm) |
---|---|---|
DPPh | –20.5 (s)a | |
DPTol | –23.1 (s)a | |
[Mo(CO)4(nbd)] | 2041 (s), 1980 (sh), 1951 (s), 1888 (s) | |
[Mo(CO)4(DPPh)] | 2031 (s), ∼1938 (sh), 1920 (s), 1775 (s) | 49.9 (s)b |
[Mo(CO)4(DPTol)] | 2029 (s), ∼1935 (sh), 1916 (s), 1774 (s) | 48.4 (s)b |
[MOE-NH3][Mo(CO)4(DPPh-NH-MOE] | 2024 (s), 1931 (s), 1902 (s) | 72.5 (d, J = 3.3 Hz), 70.2 (d, J = 3.3 Hz)c |
[MOE-NH3][Mo(CO)4(DPTol-NH-MOE)] | 2022 (s), 1928 (s), 1900 (s) | 70.8 (d, J = 2.4 Hz), 68.5 (d, J = 2.4 Hz)c |
162 MHz, CDCl3.
122 MHz, CD2Cl2.
162 MHz, CD2Cl2.