I always have the problem of finding whether a complex has colour due d-d transition of electrons or if it is due to electron exchange. Is there a general way to tell whether a complex has d-d transition or electron exchange? Is it the right method to check if a metal has d electrons and if it does. Its color must come from d-d transition and if not the color must come from charge transfer?
closed as too broad by paracetamol, airhuff, Todd Minehardt, Ben Norris, Klaus-Dieter Warzecha Apr 25 '17 at 10:59
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