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Article ID: 705 - Last Modified: August 19, 2014

Can Maestro include F---H interactions when showing H-bonds?

Yes. Hydrogen bonds to fluorine are off by default from Suite 2011 (Maestro 9.2), whereas they are on by default for Suite 2010 and earlier. There isn't a preference in Maestro to turn H---F H-bond display on and off, but there is a command preference, introduced in Suite 2011. To show H-bonds to fluorine from Suite 2011 on, display the Command Input Area from the Window menu, and enter the command:

prefer fluorine=true

This preference is persistent in future Maestro sessions. To turn off H-bonds to fluorine, enter the command

prefer fluorine=false

In Maestro 9.1 and earlier, you can turn off H-bonds to fluorine by subtracting fluorine from the atom set definition in the H-bonds tab of the Measurements panel. Add "and not a.e F" to the end of the Atom Set definition. "a.e" stands for atom.element.

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