Early in the 20th century, coordination compounds sometimes were given names based on their colors Two compounds with the formula CoCl 3 4 NH 3 were named praseo cobalt chloride (praseo green) and violio cobalt chloride (violet color) We now know that these compounds are octahedral cobalt complexes...

The compounds you are referring to are cobaltIII ammine chloride complexes These complexes can exist ...

Early in the 20th century, coordination compounds sometimes were given names based on their colors. Two compounds

Question:

Early in the 20th century, coordination compounds sometimes were given names based on their colors. Two compounds with the formula CoCl₃ ∙ 4 NH₃ were named praseo-cobalt chloride (praseo = green) and violio-cobalt chloride (violet color). We now know that these compounds are octahedral cobalt complexes and that they are cis and trans isomers. Draw the structures of these two compounds, and name them using systematic nomenclature.

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