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Optical Activity

A complex of ...

Question

A complex of the type $[M (A A)_{2} X_{2}]^{n +}$ is known to be optically active. What does this indicate about the structure of the complex? Give one example of such complex.

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Solution

An optically active complex of the type $[M (A A)_{2} X_{2}]^{n +}$ indicates cis-octahedral structure, e.g., $c i s - [P t (e n)_{2} C l_{2}]^{2 +}$ or $c i s - [C r (e n)_{2} C l_{2}]^{+}$ because its mirror image isomers are non-superimposible.

Non-superimposable isomers of $[P t (e n)_{2} C l_{2}]^{2 +}$

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Similar questions

The necessary and sufficient condition to exhibit optical activity, the configuration of the given complex should be assymmetric.

The complex which does not exhibit cis

-

trans isomerism but optically active

:

Q. (a) For the complex

[F e (C N)_{6}]^{4 -}

, write the hybridisation, magnetic character and spin type of the complex. (At. number: Fe=26)
(b) Draw one of the geometrical isomers of the complex

[C o (e n)_{2} C l_{2}]^{+}

which is optically active.

Q. The complex ion;

[P t (N H_{3}) (N H_{2} O H) (N O_{2}) (P y)]^{+}

has been found to be optically active,then the probable geometry of the complex is:

Q. (a) For the complex

{[F e {(C N)}_{6}]}^{3 -}

, write the hybridization type, magnetic character and spin nature of the complex. (Atomic number :

F e = 26

).
(b) Draw one of the geometrical isomers of the complex

{[P t {(e n)}_{2} {C l}_{2}]}^{2 +}

which is optically active.

Q. Indicate the types of isomerism exhibited by the following complex and draw the structure of this isomer.

[P t (N H_{3}) (H_{2} O) C l_{2}]

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