Good day.  I have a connectivity matrix of molecular fragments but no xyz coordinates for the atoms in the fragments. 

Can I create a CTfile without xyz coordinates for the atoms?  All I would like to define is atom type (C, N, O H, F, etc...) and bonding between the two atoms. 

I guess I can create the file, but will it be of any use?  Can I open the CTfile in a module within Materials Studio with the program then assigning positions of the atoms based on typical bond lengths and angles?

Thanks for your help.