I have two questions regarding the MARTINI 3 coarse-grained (CG) model for perfluorooctane (C8F18 or CF3-(CF2)6-CF3)
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For CF3 atoms, can I use the SX4e bead to represent the CF3 of perfluorooctane, as suggested in the following paper about the MARTINI 3 small molecules? (page 7 of Adv. Theory Simul. 2022, 5, 2100391)
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For CF2 atoms, does it make sense to represent each CF2 as one bead, or several CF2 atoms (such as (CF2)3) as one bead?
Thank you!