Hi all:

I have constructed a electrolyte model with amorhphous cell (all of the molecules have been optimized by dmol3 and apply the population analysis). After that I relaxed it with Forcite-Anneal and Dynamic model.(the detail parameter as fellow)

Finally, I run the Forcite Dynamic model with electric field in "NVT" ensemble.But,all of the molecule move in the direction of the electric field(Both the molecule with the positive chargea and negetive charge )(Even the electrically neutral molecules）

I wonder why this is causing this issue? How can I solve it?

here is the detail paramter which I used to calcul.

frist anneal, next NPH, 3th NVT,Finally NVT with electric field