Fig. 5
From: SMILES all around: structure to SMILES conversion for transition metal complexes
Example of a molecule containing a boron hydride cluster. None of the above described methods can produce a SMILES/mol object for these kind of structures due to the high valence of Boron. CSD ID: PEKGAP. Dark pink: Cobalt, light pink: Boron, red: Oxygen, blue: Nitrogen, grey: Carbon, white: Hydrogen