As discussed in the introduction part, a prospective application of coordination networks is their use as precursors for functional porous carbon materials, typically synthesized through pyrolysis under air-free conditions. However, the application of alkali metal-based coordination networks in this area is still largely unexplored, prompting our investigation into the applicability of materials 1 • 5H2O, 2 • 3H2O and 3 • 3H2O as precursors to functional porous carbon materials. In order to choose the transformation conditions the thermal stability and decomposition pathways of the selected precursors were studied using thermogravimetric analysis (TGA). As a result, it was found that upon thermal treatment all of the examined samples initially release the water molecules leading to non-hydrated M3BTC products, which were further decomposed in a pyrolytic process leading to the carbon materials (Figures ). Based on the observed TGA curves the temperature of 850 °C was selected for the pyrolytic transformations from alkali-BTC networks towards porous carbon materials. Consequently, ca. 10 g samples of materials 1 • 5H2O, 2 • 3H2O and 3 • 3H2O were pyrolyzed in N2 atmosphere at 850 °C for 5 hours and washed with aqueous H2SO4 (5 %) in order to remove inorganic products (see experimental part for full synthetic details), yielding porous carbon materials 1C, 2C and 3C respectively. All of the developed materials were analyzed using PXRD, which revealed their amorphous structure (Figure ). Moreover, SEM was used in order to study the morphology of 1C, 2C and 3C, demonstrating the highly developed surface of the studied materials (Figure ). In particular, mesopores (2 -50 nm in diameter) were observed mostly in material 1C (Figure ) and less often in 2C (Figure ). The composition of the materials 1C, 2C and 3C was investigated using the elemental analysis and XPS spectroscopy (Figures ), which revealed that they were consisting mainly of C (84.61%, 91.64% and 83.92%, respectively), O (11.18%, 7.46% and 13.65%, respectively) and small amounts of H and N. Notably, no trace of Li, Na and K have been detected using XPS spectroscopy, which indicates complete removal of the inorganic products by the H2SO4 washing.