Question

Calculate the bond order of CO.
The CO bond length is 1.13 angstroms. Would you expect the carbon monoxide anion to have a longer or shorter bond? Explain why.
CO is colorless – what does that tell you about the way in which it does or does not absorb visible light?
And, in turn, what does that tell you about the electronic structure of CO?
CO has a single strong absorption of IR energy at approximately 2300 cm-1.

What energy does this correspond to in J?
What kind of molecular transition does this correspond to?

Answer 1

a) The CO bond length is 1.13 angstroms . So This is shorter bond . This is just like a Triple bond and this smaller than single and double bond .

b) CO is colorless , So this cannot absorb any kind of visible light wavelength .

c) CO has a single strong absorption of IR energy at approximately 2300 cm-1.

So , Energy = hc / lemda = ( 6.626 * 10^-34 * 3* 10⁸ * 230000) J .

= 4.5 * 10^-20 j . Answer .