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Topic: intensity of colours  (Read 7028 times)

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Offline NTUstudent

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intensity of colours
« on: December 23, 2010, 08:10:37 AM »
hi guys,
i have question about complexes again.

Need to explain the following:
The colour of trans-[Co(en)2F2]+ is less intense than those of cis-[Co(en)2F2]+ and trans-[Co(en)2Cl2]+



Offline dipesh747

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Re: intensity of colours
« Reply #3 on: April 09, 2012, 04:50:22 AM »
He's just telling you to go buy a textbook and read. I wouldn't say that one as it is a post-grad book and you are quite clearly not a post grad.

Here is a start http://www.wou.edu/las/physci/ch462/tmcolors.htm

Offline cheese (MSW)

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Re: intensity of colours
« Reply #4 on: April 10, 2012, 11:53:40 PM »
I think we might be more specific:
F. A. Cotton, G. Wilkinson, C. A. Murillo, M. Bochmann,
Advanced Inorganic Chemistry 6th ed (1999). p 824-825
(C&W is not called "The Bible" by inorganic chemists without reason :))
And also for example:C. E. Housecroft, A. G. Sharpe, Inorganic Chemistry 3rd ed p  663.
For you last part consider where F^- and Cl^- are in the spectrochemical series
viz a viz en

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