[FeF] is almost colourless whereas [CoF6]3- is coloured and exhibits only a single band in the visible region of the spectrum. Justify.
To justify the color difference between \([FeF_6]^{3-}\) and \([CoF_6]^{3-}\), we need to analyze their electronic structures and crystal field splitting in the octahedral ligand field. ### Step 1: Oxidation States and Electronic Configurations - Iron Complex \([FeF_6]^{3-}\): - Fe in \([FeF_6]^{3-}\) is in the +3 oxidation state. - Electronic configuration of ________ ____ ____ ________ __________ ________ _________ _____ ______ ____.
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Explain the concept of hapticity giving suitable examples.
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(i) whether the complex is high spin or low spin
(ii) the number of unpaired electrons
(iii) whether the complex is coloured or not?
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, (c)
.(d)
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