Not calling the checkpoint correctly

[TristanSJones]

• The gaussian input that calls the checkpoint file for the opt_anion, ver_anion, opt_cat and ver_cat is currently wrong and not calling the file.

• %Chk=file ->This names a new checkpoint file

• %OldChk=file ->retirves old checkpoint from neu_opt

• Needs to have both in the gaussian input so that it uses the old geometry and makes a new checkpoint so that we can go back to it with errors etc

https://github.com/matta-research-group/auto_workflow/blob/b2825f30424edf3f85d70397308c5a926d252b54/write_input_io.py#L66

[TristanSJones]

Useful link to commands - https://gaussian.com/link0/