How many stereoisomers does the compound PF3Cl2 have?

[A13235378]

Summary:: Isomery

My attemption: (I found 5)

But the answer is 3 forms, where I missing?

 

[Nick tringali]

For whatever reason, I think the issue is that the top right structure and the bottom structure are mesocompounds and the top 2 middle ones are mesocompounds as well, I could be very wrong but that's what I am thinking.

 

[mjc123]

What makes you think 1 is different from 2, or 3 from 4?

 

[A13235378]

For whatever reason, I think the issue is that the top right structure and the bottom structure are mesocompounds and the top 2 middle ones are mesocompounds as well, I could be very wrong but that's what I am thinking.

Exactly, they are mesocompounds, but they also count as stereoisomers.

 

[A13235378]

What makes you think 1 is different from 2, or 3 from 4?

Yes you are right. I already found my mistake