> The salt R-N(CH3)3-Br. > And, any differences for assigning the Van-der waal and LJ parameters > between salt and organic molecules? no difference. - Vitaly V. Chaban School of Chemistry National University of Kharkiv Svoboda sq., 4, Kharkiv 61077, Ukraine email: chaban at univer.kharkov.ua skype: vvchaban