Question: The rotational constants B 0 have been determined for three isotopic derivatives of chloroacetylene: Assume that the carbon isotope is 12 C in all cases.

The rotational constants B0 have been determined for three isotopic derivatives of chloroacetylene:H-C=C-37C1, 5572.3 MHz; D-C=C-7C1, 5084.2 MHz; and H-C=C-5C1, 5684.2 MHz.

Assume that the carbon isotope is 12C in all cases. Calculate the three bond distances in chloroacetylene. What approximations or assumptions do you have to make to work this problem with the information given?

H-C=C-37C1, 5572.3 MHz; D-C=C-7C1, 5084.2 MHz; and H-C=C-5C1, 5684.2 MHz.

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