Skip to main content
. 2023 Mar 27;62(50):20608–20620. doi: 10.1021/acs.inorgchem.3c00426

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
a

162 MHz, CDCl3.

b

122 MHz, CD2Cl2.

c

162 MHz, CD2Cl2.