# CFOUR_GEO_CONV

> Specifies the convergence criterion for geometry optimization. The optimization terminates when the RMS gradient is below Hartree/bohr, where is the specified value. PSI4 Interface: Geometry optimizations run through PSI (except in sandwich mode) use PSI’s optimizer and so this keyword has no effect. Use optking keywords instead, particularly G_CONVERGENCE =CFOUR, which should be equivalent except for different internal coordinate definitions.

> - Type: integer
> - Default: 5