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I need to draw Newman projection of a molecule. Particularly 1,2-dicloroethane rotamers, but have no idea if there is any program to do that kind of things.

Do you know about some program available for Linux?

I refer to this kind of sketch:

newman_projection

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    $\begingroup$ Do you use Latex? If so, the chemmacros package can do this. $\endgroup$ – Thomas Jungers Aug 1 '17 at 17:30
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    $\begingroup$ Sure! You can make a standalone document, then convert the pdf to png using ImageMagick (convert file.pdf file.png). There is also a way to compile latex directly to png (run latex, then dvipng), but I have never used it. $\endgroup$ – Thomas Jungers Aug 1 '17 at 17:46
  • $\begingroup$ My guess is, not enough people need this feature for the developers to implement it. It is however present in proprietary softwares like ChemDraw (which is, of course, not available on Linux). $\endgroup$ – Thomas Jungers Aug 1 '17 at 17:58
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    $\begingroup$ Some versions of ChemDraw work on Linux via Wine. $\endgroup$ – andselisk Aug 1 '17 at 21:02
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    $\begingroup$ @santimirandarp How do I put this - if you have ChemDraw already, you are good, Wine is free:) $\endgroup$ – andselisk Aug 1 '17 at 21:44
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You can visit ChemistrySteps.com and use the free drawing tool embedded in the text editor. It doesn't have the ring but you can try using the text and add "O" as the ring. It may not be the best drawing tool but it is free and you can definitely draw many different structures.

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