How to Calculate Bond Distance in OCS Molecules?

[fricke]

Homework Statement

Two molecules of OCS (atomic weigh of S is 32 amu and the other one is 34 amu) have values of h/8π²I of 6081.490E6 [1/s] and 5932.816E6 [1/s], respectively. Calculate the C-O and C-S bond distance. (Note that I is moment of inertia)

Homework Equations

h/8π²I

The Attempt at a Solution

I tried to solve this by equating h/8π²I with the given value to find the bond distance. But my answers are apparently wrong (The textbook gives the final answer).

 

[mfb]

The Attempt at a Solution

I tried to solve this by equating h/8π²I with the given value to find the bond distance. But my answers are apparently wrong (The textbook gives the final answer).

It is impossible to tell what went wrong if you don't show your work.
If the book gives a different final answer, it would also be interesting to see that.