I am trying to optimize alpha glycine with B3LYP. It is supposed to use the TRUNCATED or SHORTRANGE type of potential in the HF section.
1) I would like to know that which one is is a better choice?
Alpha glycine has a monoclinic unit cell.
ABC 4.9669 11.459 5.4231
ALPHA_BETA_GAMMA 90.0 114.916 90.0
2) Should I use the smallest unit cell parameter for choosing CUTOFF_RADIUS?
P.S. Please find my attached input.