I wonder if one can do optimization in DLC coordinates having a few frozen
Cartesian coordinates. From the manual it is unclear if it is possible
or not. I tried to specify a few frozen Cartesians using IFREEZ (NZVAR=1)
but it didn't seem to work. Only a part of the frozen Cartesians specified
with IFREEZ got frozen. I have no idea why it worked like that.
I would appreciate very much some clarification.