Structure of Ferrocene

How to draw the structure of 1,1’-diacetyl ferrocene and how to optimize its structure in Avogadro 1.2.0?

I believe this to be a bug with Avogadro

Environment Information

Avogadro version:
Operating system and version:

Expected Behavior

Actual Behavior

Steps to Reproduce

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I thought there was a ferrocene fragment in Avogadro 1.2, but it seems like it’s missing.

There does seem to be one version as a 3D SDF from the NIST WebBook.

In the upcoming 1.98 beta, there’s a new “template tool” for building inorganic complexes:

Click to insert the linear iron fragment.

Click on each hydrogen to insert the Cp rings to get ferrocene:

You can then switch to “functional groups” to add an acetyl ester and click where you want:
Screenshot 2022-12-23 at 11.43.02 AM

Here’s the example file.

I’d recommend using XTB to optimize inorganic complexes. Free, good quality, and fast.