Question

How many isomers are possible for combination Mabcdef in an Octahedron?

Answer 1

Answer

30 isomers (15 pairs of enantiomers)

Explanation:

Answer 2

Answer:

Explanation:

We already know that:

There are two geometric isomers possible for this composition when the coordination geometry is octahedral, that is:  cis and trans.

The key is to not get confused by different ways of drawing these isomers.

You should always remember that, all the six positions on an octahedron are equivalent.

There are not axial and equatorial positions, as there are for a - Trigonal Bipyramid.

For example,  

Both drawings below represent the cis-tetraamminedichloroplatinum(IV) ion, in which the Cl-Pt-Cl bond angle is 90 degrees.