The DSC curves of the salts exhibited no notable thermal events during heating and cooling below their respective thermal decomposition temperatures, except for the asprepared HTBZ-HOX (Figure ). Specifically, heating the sample revealed a distinct sharp endothermic peak at 110 °C, while no thermal event was observed during the subsequent cooling. In the second heating, no peak was detected. This observation strongly suggests the presence of water in the sample and corroborates the conclusions based on the TGA analyses.