1. Very poor and obviously incorrect fits. This means models that are such poor fits to the data, often missing intense diffraction peaks, that they cannot be relied upon either for proof of the structure of the compounds, nor their purity. The poor fitting leads to the inability to identify impurity phases. Since the authors aim to have >50 wt% of their product, it is important to identify what other materials are present in order to assess if the 50% threshold has been met. Additionally, the presence of unreacted starting materials is symptomatic of an incomplete reaction and incorrect reaction conditions. This error type is present in 18/36 compounds.