Question

What are the isomers of Ma3bcd type complex?

Answer 1

Answer:

The question is to find out the number of geometrical isomers of the complex [Ma3b2c].

I applied simple combinations to get the number of isomers as 6!3!2! which is 60 in total. However my book states that only 3 geometrical isomers are possible. I could not see why simple combinations is not giving correct answer.