<div>Dear all,</div><div>I try to combine QMMM and metadynamic in my research. But I encountered some difficulties.</div><div>In my research ,I want to explore the stable positions of hydrogen atom in silica. In order to speed up the metadynamic calculation, I try to add the QM cell in the system. The whole system is &SUBSYS/&CELL ABC 15 15 15. I want to set a 5×5×5 cell in the middle of the whole syetem (the green cube).</div><div>However, I don't know how to set the &FORCE_EVAL/&QMMM/CELL.<img alt="捕获.JPG" data-iml="21953325.099999428" width="534px" height="431px" src="cid:bbc5d427-b319-4e83-a3e3-bd990dc0aeaf"></div><div><br></div><div>In the description of the manual, ABC are based on Cartesian. In this case, the green </div><div> cube cannot be defined. The size of the whole system(MM) is based on the origin, but the green cube(QM) seems to need to be translated. </div><div>I wonder how to discribe the QS cell position when the cell is inside of the MM cell.Or is there any other way to achieve.</div><div><br></div><div><em><span style="font-style: normal;">Thanks in advance</span></em><br></div><div><em><span style="font-style: normal;"><br></span></em></div><div>Sinerely </div><div>Wang</div><div></div>
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