Question

ii. Predict whether the [Cr(en)2

(H2

O)2

]3+

complex is chiral. Write structure of its

enantiomer.​

Answer 1

Explanation:

I hope it will help you ...........

Answer 2

Given:

A coordination complex has been provided.

To find:

Whether this complex is chiral or not.

Solution:

Any coordination complex is said to have a chiral Centre if it does not have any plane of symmetry.

The supplied complex is :

$\boxed{\sf{\bigg\{Cr(en)_{2}(H_{2}O)_{2}\bigg\}^{+3}}}$

So, this is an example of octahedral complex, having both cis and trans isomer.

Refer to the attached diagram to understand the cis and trans isomer;

The trans isomer has 2 planes of symmetry and hence doesn't have a chiral centre.

However , the cis isomer doesn't have any planes of symmetry, so it is chiral.

Other points to note:

• Since the trans isomer is not having any chiral centre, it is optically inactive.

• The cis isomer with chiral centre is optically active and enantiomer is possible.