July 06, 2022, 05:37:33 PM
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Topic: Emergency answer on this question!  (Read 332 times)

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Offline annier235

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Emergency answer on this question!
« on: November 07, 2021, 02:18:18 PM »
I am really struggling with all parts of this question! If someone can work it out, it would be of great *delete me* I need the answers in 10 hours!

1. (i) Use group theory to predict the number of (CO) stretching
vibrations you would expect to observe in the IR and Raman
spectra of all sensible isomers of Fe(CO)4(PPh3).
(10 marks)

(ii) Can these isomers be differentiated by IR and/or 13C {
spectroscopy at room temperature? Fully explain your answer in
both cases.
(10 marks)

(iii) Fe(CO)5 is relatively unstable and upon standing converts into
a green solid. What is the latter? Give a balanced equation.
Would you expect to be able to differentiate between these two
iron carbonyls on the basis of IR spectroscopy? (you do not need
to give a full group theory analysis)
(5 marks)

(iv) Explain why Fe(CO)4(PPh3) does not decompose in a similar
manner but is sensitive to oxidative decay.
(5 marks)

Offline Corribus

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Re: Emergency answer on this question!
« Reply #1 on: November 07, 2021, 06:35:40 PM »
You have to show work to receive help. This is a forum policy.
What men are poets who can speak of Jupiter if he were like a man, but if he is an immense spinning sphere of methane and ammonia must be silent?  - Richard P. Feynman

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