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Topic: Determining bond lengths from rotational constant  (Read 12847 times)

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camariela

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Determining bond lengths from rotational constant
« on: April 30, 2006, 03:31:38 PM »
Hello,
The question that I would appreciate aid on would be:

The rotational constant B for CO2 was found from rotational Raman spectra to be B = 0.3937/cm. Determine the C=O bond length from this value.

Thanks!
camariela
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Offline Donaldson Tan

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Re: Determining bond lengths from rotational constant
« Reply #1 on: April 30, 2006, 04:29:28 PM »
Use the rigid rotor model to solve
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camariela

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Re: Determining bond lengths from rotational constant
« Reply #2 on: May 02, 2006, 09:11:38 PM »
Do work out the moment of inertia from that and then work out the bond length?
How would I work out the bond length from the moment of inertia of CO2?
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Offline Donaldson Tan

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Re: Determining bond lengths from rotational constant
« Reply #3 on: May 02, 2006, 10:13:42 PM »
B = h/8.Pi2.c.I

I = meffectiveR2
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"Say you're in a [chemical] plant and there's a snake on the floor. What are you going to do? Call a consultant? Get a meeting together to talk about which color is the snake? Employees should do one thing: walk over there and you step on the friggin� snake." - Jean-Pierre Garnier, CEO of Glaxosmithkline, June 2006
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