hello everybody

I have already posted a similar question, but with no feedback .. I will then try to be more specific: I would like to use something similar to RATTLE but in Forcite+. Specifically, I would like to keep bonds and angle of water molecules fixed in a dynamics job. Is there any mean to do that? maybe applying very high bond/angle stiffness in the forcefield? would that work? Is Accelrys planning to implement RATTLE or SHAKE algorythms in future versions of Forcite+? Thanks in advance for kind replies

Regards

Giulio