Possible isomers for difluoropentaine?

I suppose it is "difluoropentane" instead of "difluoropentaine".
The possible isomers for difluoropentane are:

1. 1,1-difluoropentane: CH₃–CH₂–CH₂–CH₂–CHF₂

2. 2.2-difluoropentane: CH₃–CH₂–CH₂–CF₂–CH₃

3. 3,3-difluoropentane: CH₃–CH₂–CF₂–CH₂–CH₃

4. 1,2-difluoropentane: CH₃–CH₂–CH₂–CHF–CH₂F

5. 1,3-difluoropentane: CH₃–CH₂–CHF–CH₂–CH₂F

6. 1,4-difluoropentane: CH₃–CHF–CH₂–CH₂–CH₂F

7. 1,5-difluoropentane: CH₂F–CH₂–CH₂–CH₂–CH₂F

8. 2,3-difluoropentane: CH₃–CH₂–CHF–CHF–CH₃

9. 2,4-difluoropentane: CH₃–CHF–CH₂–CHF–CH₃