S
F
F
F
F
F
F
S
F
F
F
F
S
F
F
1.59A
98
o
1.54A
1.65A
1.56A
102
o
o
o
o
o
Cl
F
Br
F
I
F
Cl
F
F
F
Br
F
F
F
Cl
F
F
F
F
F
Br
F
F
F
F
F
I
F
F
F
F
F
F
F
F
F
F
I
F
F
1.65A
o
1.76A
o
1.91A
o
1.58A
o
1.70A
o
1.73A
o
1.81A
o
1.57A
o
1.67A
o
1.70A
o
1.77A
o
1.84A
o
1.88A
o
1.77A
o
1.86A
o
87
o
86
o
86
o
85
o
83
o
N
O
H
H
N
O
H
N
N
H
H
H
H
H
97
o
1.45A
o
1.45A
o
1.21A
o
N
O
O
N
O
N
O
N
N
O
O
N
O
O
O
N
O
O
N
O
1.15A
o
2.26A
o
1.15A
o
1.19A
o
1.76A
o
1.20A
o
1.14A
o
1.86A
o
1.21A
o
134
o
134
o
105
o
130
o
Fig. 10 Examples of main group fluorides and oxides studied by electron diffraction techniques in
the gas phase
34
D. M. P. Mingos