Can Pikachu draw radicals?

[wangdu817]

It seems the radicals can not be generated from SIMLES, they just show the same as the close shell species:
for instance:
draw_smiles('CN(C=O)([CH2])') is the same as draw_smiles('CN(C=O)C'), no dot appears as a lone electron

[BTheDragonMaster]

This is indeed true - currently radicals are not supported. We will aim to implement this in a future version of PIKAChU.