303
Substituent R 1
R 2
R 3
δ
–OH
–OH
–OH
0
–OCH 3
–OCH 3
–OCH 3
0
–OCH 2 CH 3
–OCH 2 CH 3
–OCH 2 CH 3
-1
–OCH(CH 3 ) 2
–OCH(CH 3 ) 2
–OCH(CH 3 ) 2
-13
–O–phenyl
–OH
–OH
-4
–O–phenyl
–O–phenyl
–OH
-11
–O–phenyl
–O–phenyl
–O–phenyl
-18
–S–n-butyl
–S–n-butyl
–OH
37
–S–n-butyl
–S–n-butyl
– S–n-butyl
62
31 P Chemical Shifts of Tetracoordinated P(=S) Compounds
Substituent R 1
R 2
R 3
δ
–CH 3
–CH 3
–CH 3
59
–CH 2 CH 3
–CH 2 CH 3
–CH 2 CH 3
53
–phenyl
–phenyl
–phenyl
43
–CH 3
–CH 3
–Cl
87
–phenyl
–phenyl
–Cl
80
–CH 3
–CH 3
–Br
63
–CH 2 CH 3
–F
–F
111
–CH 3
–Cl
–Cl
81
–CH 2 CH 3
–Cl
–Cl
95
–F
–F
–F
32
–Cl
–Cl
–Cl
29
–Br
–Br
–Br
-112
–Br
–I
–I
-315
–N(CH 2 CH 3 ) 2 –N(CH 2 CH 3 ) 2 –N(CH 2 CH 3 ) 2
78
–CH 3
–OCH 3
–OCH 3
100
–OCH 2 CH 3
–OCH 2 CH 3
–OCH 2 CH 3
68
–CH 3
–S–n-propyl
–S–n-propyl
78
–S–n-butyl
–S–n-butyl
–OCH 3
111
–S–n-propyl
–S–n-propyl
–S–n-propyl
93
3 O
S
C
X
N
O
S
P
S
R
2
R
1
R
3
6.4 31 P NMR Spectroscopy