[gmx-users] Rigid molecules in system

[xzp02 at mails.tsinghua.edu.cn]

Dear all:
    I want to study a system with 2 molecules(C1 and C2), and I do not need the
intramolecular degree of freedom (loss of reality) but care of the intermolecular
vdW interaction. Can anyone help me with the method?
    And also I wonder if the total energy is conserving in that case ?

Best,
ZP