How can I draw the structures of all the geometric isomers of [Ru(H_2O)_2(NH_3)_2Cl_2]^+ . What are the mirror images of any of these chiral molecules?

1 Answer
Jul 10, 2015

["Ru(H"_2"O")_2("NH"_3)_2"Cl"_2]^+ has five geometric isomers, of which the all-cis isomer is chiral.

Explanation:

["Ru(H"_2"O")_2("NH"_3)_2"Cl"_2]^+ is an octahedral complex of the type "MA"_2"B"_2"C"_2.

Let "A" = "H"_2"O", "B" = "NH"_3, and "C" = "Cl".

There are five isomers:

(1) trans-"A", trans-"B", trans-"C"

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(2) trans-"A", cis-"B", cis-"C"

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(3) cis-"A", trans-"B", cis-"C"

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(4) cis-"A", cis-"B", trans-"C"

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(5) cis-"A", cis-"B", cis-"C"

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The all-cis isomer is not superimposable on its mirror image. It exists as a pair of enantiomers.