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How to manually change bond lengths to a custom length?

Hi! I’m trying to draw molecules for an experiment I’m designing. The default single bond length for the molecules are too short for my purposes. Does anyone know how I can extend the lengths? I know I can use the Bond Centric Manipulation tool, but I need to make all my bonds be a given length without having to manually adjust each one individually.

Please let me know if you can help! Thank you!

The easiest way to do this in Avogadro 1.2 is to go to View -> Properties -> Bond Properties and type in bond lengths you want.

In v2, there are some custom commands like scale coordinates - this seems like a good case too (e.g., change all C-C single bonds to 1.8Å).