The current data model of SMILES does not implement dative bonds -with the exception of the newest RDKit using a non-standard "->" arrow to designate dative bonds. Since MolScribe and OSRA are able to create MOL files as predictions, it would be possible to set a bond type to a dative bond in the output MOL files. Unfortunately, none of the evaluated OCSR tools was able to recognize those metal complexes and their coordinative bonds at a satisfactory level. To a certain degree, OSRA could extract dative bonds -OSRA version 2.1.5 has been developed aiming at generating MOL files that contain such bond types. When analysing such images of coordination complexes with MolScribe, conventional single bonds between the metal and the donor nitrogen atoms were predicted, increasing the charge for the nitrogen atom to +1 with its dative bond (see Fig. ). In the SDF file prediction using OSRA four dative bonds were predicted, it remained unclear why nickel got a charge of +1. Also, with the same image a frequently occurring error of MolScribe was observedconverting nitriles to isonitriles which can be attributed to its novel logic of interpreting superatoms.