Question

The statement that is true regarding $S{F}_{2}C{l}_2$ among the following is:

• A. The axial bonds are longer than the equatorial bond
• B. The axial bonds are shorter than the equatorial bond
• C. Cl occupies the axial the bond
• D. none of the above

Answer 1

The correct option is B The axial bonds are shorter than the equatorial bond

According to Bent's rule, $F$ occupies the axial bonds in the trigonal bipyramidal geometry. Generally, the axial bonds are longer than the equatorial bond since the axial bonds are $dp$ hybridized and the equatorial bonds are $s{p}^2$ hybridized. However, $F$ is so small and the axial $S-F$ bonds are shorter than the equatorial $S-Cl$ bond.